9 Best Things to Do
in Rayong

Koh Samet is one of the clear-water islands closest to Bangkok. Drive down to Rayong, then take a 30-40 minute boat from Ban Phe Pier and you're there. The main appeal is fine white sand that's comfortable to walk barefoot on, sea water clear enough to see the sandy bottom in many bays, and the fact that most of the island falls within Khao Laem Ya–Mu Ko Samet National Park, so there's still plenty of nature to enjoy while walking or swimming. The popular Sai Kaew Beach sits close to the pier and is lively with restaurants and accommodation, while Wong Duean Bay, Ao Phrao, and the smaller bays toward the south of the island are quieter and more private — good for anyone after a more laid-back vibe. Activities on the island range from swimming and sunbathing to kayaking, boat trips around the island for snorkeling over rock formations, and nighttime fire shows on the bigger beaches.

The simplest way to get there is to head to Ban Phe Pier and buy a ticket for the regular passenger boat or a speedboat over to the island. The regular boat is cheaper but waits until it's full and takes longer, while the speedboat is faster and can drop you at several bays. Before you land, there's a national park entrance fee collected at the checkpoint in front of the island — Thai and foreign visitors pay different rates, so it's worth keeping this cash separate from your boat fare and accommodation budget. The best time for clear water and easy sightseeing is the dry season, roughly November to April, when skies are clear and waves are calm; during the rainy season waves pick up and the water can get murkier on some days. Booking your boat and accommodation online in advance makes it easier to compare prices and pick a beach that suits your style before you arrive.

To be upfront about what to expect: Koh Samet is a popular island that Bangkok residents flock to on weekends and long holidays, so big beaches like Sai Kaew get crowded, restaurants and boats have long queues, and accommodation prices spike during peak periods. Visiting on a weekday means fewer people and a much better atmosphere. The water on Koh Samet is clear in many bays, but it's still not as clear overall as the Andaman Sea or the southern islands, and some spots near the pier or busier beaches are murkier than the quiet bays to the south. The extra national park fee is also an expense many travelers don't plan for ahead of time. If you want a beautiful, clear, quiet beach, it's worth walking or taking a songthaew further south past Sai Kaew rather than sticking to the crowded beach by the pier.

An island-hopping snorkel tour around Samet is a great way to see several angles of Rayong's sea in a single day. Most boats depart from Ban Phe Pier or pick up from beaches on Koh Samet itself, then loop around smaller islands where the water is clearer than at Samet. Popular stops include Koh Kudee, with its white sand beach often used as a lunch stop; Koh Talu, with its arch-shaped rock formations and coral reefs where you can spot clownfish; and Koh Platin and Koh Kham, which have shallow coral you can float over without needing to be a strong swimmer. Join-group tours on larger boats are popular because they're affordable per person and come with life jackets for everyone, making them a good fit for families with kids or adults who aren't confident swimmers. For anyone who wants to reach the islands faster and pick their own stops, speedboat and private charter options are available too, though at a higher price for the added privacy.

The per-person price usually includes lunch, fruit, drinking water, snorkeling gear (mask and snorkel), and a life jacket. Many operators also offer pickup from Ban Phe Pier or your island resort. Real reviews often praise crews who arrive on time, look after guests well, and take them to great photo spots. Booking through an online platform ahead of time lets you compare what's included, how many islands are visited, whether it's a large boat or speedboat, and whether an underwater photographer is included. It's worth checking whether the itinerary covers 4 islands or 5-6, since the route and time at each stop varies. The clearest water and best snorkeling conditions are during the dry season, roughly November to April; during monsoon season waves get rougher and underwater visibility drops, and some operators cancel trips altogether.

To be upfront about what to expect before booking: during long holidays, many tour boats end up dropping at the same islands at the same time, so some spots get crowded and the water gets stirred up by large numbers of snorkelers. Some coral shows signs of bleaching and degradation from weather conditions and heavy use, so you shouldn't step on or touch the coral, and it's worth using reef-safe sunscreen. The boat ride to farther islands can get quite choppy at times, so if you're prone to seasickness, take motion-sickness medication beforehand and sit in the middle of the boat. Arriving at the first island early, before other boats show up, means clearer water and fewer people. Bring a long-sleeved rash guard, a hat, and shoes you don't mind getting wet for a comfortable day out.

Koh Man Nai is the largest and closest-to-shore island in the Mu Ko Man group, off the coast of Klaeng District, Rayong, about five kilometers from the Ao Makham Pom pier near Laem Mae Phim. The island is home to a Sea Turtle Conservation Center run under a royally initiated project. What draws visitors is the chance to see sea turtles at every stage — from newly hatched turtles in nursery tanks, to breeding adults that are decades old, to injured turtles that staff have taken in for treatment before releasing them back into the sea. The same site has a small museum covering turtle species, life cycles, egg-laying, and coral reef restoration, making this a trip that combines sightseeing with learning — a great fit for families who want kids to see marine life up close.

The atmosphere on the island is quiet, a contrast to typical tourist islands. There's a sandy beach and clear water for walking and wading, and many visitors combine the trip with a snorkel tour around the coral reefs of the Mu Ko Man islands, or a stop at a sandbar that appears at low tide during certain seasons. The only way to reach the island is by boat, usually a chartered boat from Ao Makham Pom or Pak Nam Prasae piers, or as part of a three-island snorkel tour arranged by resorts around Laem Mae Phim. Visiting the conservation center is free, so the main cost is the boat trip, which becomes much cheaper when split among a group. On Google, the center averages around 4.4 out of 5 from nearly eighty reviewers, with most praising it as a beautiful, quiet island and a meaningful conservation effort to witness.

Here's what's worth knowing before you go: first, the island can only be reached by boat and has no accommodation, so overnight stays aren't possible — you'll need to plan your boat schedule carefully and return to shore the same day. Second, the center is only open during daytime hours, roughly 8am to 5pm, so it's best to depart early to have enough time to see the center and walk the beach. Third, facilities on the island are limited — restaurants and shops are far fewer than on tourist islands, so bring your own drinking water, snacks, a hat, and sunscreen. Fourth, the main activity is observing and learning, not handling or playing with the turtles directly — follow the center's rules strictly so as not to disturb the animals. Lastly, boat trips depend on weather conditions; during monsoon season, rough waves may cancel sailings, so check the forecast and confirm your boat schedule with the operator before traveling every time.

Rayong is a genuine fruit province of eastern Thailand. When fruit season arrives, many orchards open their gates for all-you-can-eat fresh fruit buffets straight from the tree. Well-known ones include Suan Lamai in Ban Khai District and Suan Yai Da in Tambon Taphong, Mueang District. Most work the same way: pay a per-person entrance fee, then eat as much seasonal fruit as you like — various durian varieties, mangosteen, rambutan, longkong, salak, and other local fruits. Many orchards include a tram tour around the grounds, letting you see durian trees actually bearing fruit while the orchard owner explains along the way, making it a great activity for both kids and adults — you get to eat and learn about fruit farming at the same time.

The charm of eating fruit at the orchard is the same-day freshness — the taste is noticeably different from fruit bought at a city market. Many orchards let you sample and compare several durian varieties, while mangosteen and rambutan are usually unlimited until you're full. Some orchards also sell savory food or seafood dishes separately from the buffet fee, and there are photo spots among the fruit trees and stalls to wander around. Entry fees per person run from just over a hundred baht up to around five hundred, depending on the orchard and time of year. Young children and seniors often get a discount or free entry — it's worth calling ahead or checking the orchard's page before visiting every time, since prices and conditions change year to year depending on the fruit harvest.

To be upfront: this activity is genuinely seasonal. Rayong's main fruits — durian, mangosteen, rambutan — are in season roughly May to July, though the timing can shift slightly year to year depending on weather. Outside this window, many orchards close their buffets or have far fewer fruits on offer, so always check ahead whether an orchard is open and what fruit is available. Another point is that most orchards sit outside the city with no convenient public transport, so you'll need your own car or a rental. During long holidays and fruit festivals, crowds are especially heavy, and both parking and the tram queue can involve a wait. If you don't like crowds, avoid public holidays and go in the morning when it's cooler and less busy.

Thung Prong Thong is a wooden boardwalk stretching into a mangrove forest at Pak Nam Prasae, Klaeng District, Rayong. The highlight is the sheer number of Ceriops trees, their densely packed leaves forming a green expanse that turns golden-green in the morning or evening light — the origin of the name ("golden Prong field"). The elevated wooden walkway loops for roughly two kilometers above the mudflats, an easy, mud-free walk with viewpoints and pavilions along the way to rest and take photos. A landmark photo spot many visitors mention is a white pavilion at the end of the walkway, framed against blue sea views. Walk a little further and you can head down to swim or stroll on Mae Ramphueng Beach, home to the national park office, all in one trip. This area is maintained by the Pak Nam Prasae community tourism group, and entry is free — there's just a donation box to help maintain the boardwalk and forest.

The appeal here is getting close to a mangrove ecosystem in a relaxed way. Along the walk you'll often spot fiddler crabs, mudskippers, and waterbirds foraging on the mud. Some stretches of the boardwalk open up to reveal a green forest that stretches to the horizon against the sky. Most reviewers agree it's easy to walk and suitable for both adults and children, and many combine the visit with nearby attractions in the same area, including the old Pak Nam Prasae community, the HTMS Prasae warship memorial, and waterfront seafood restaurants — making it a well-rounded half-day trip.

To be upfront about what to know before going: first, the sun — most of the boardwalk is exposed with no shade, so it gets very hot around midday. Many reviewers recommend going early morning or late afternoon into evening, when the sun is gentler and the light is better for photos. Second, mosquitoes and insects in mangrove areas can be numerous, especially in the evening and after rain, so bring insect repellent. Third, transport — this spot is fairly far from Rayong city with no convenient public transport, so you'll almost certainly need your own car, a rental, or a tour that includes the Pak Nam Prasae area in its route.

The HTMS Prasae memorial is an old frigate raised onto land beside the mouth of the Prasae River, Klaeng District, Rayong. The ship was originally built in the United States during World War II, before being sold to the Royal Thai Navy and serving for decades until decommissioning in 2000. The people of Pak Nam Prasae set it up as a memorial to honor the role of the Royal Thai Navy, particularly during the Korean War. The hull was set into the ground and surrounded by a concrete wall, and visitors can walk up onto the deck, view the gun turrets, and climb up to the bridge, all free of charge. This spot has become a landmark photo stop paired with the old Pak Nam Prasae fishing town nearby, which still keeps its riverside fishing community feel.

The appeal here isn't just the ship — it's also the atmosphere of the old fishing town around it. Pak Nam Prasae has a riverside walking street, old wooden houses, a shrine, and affordable, fresh seafood restaurants. Nearby are the Prasae Sin Bridge and the Thung Prong Thong mangrove nature trail, where you can walk among green Ceriops trees and see local fishing life. Many visitors combine all three spots into a single half-day trip: boarding the warship for photos, walking the mangrove trail, then finishing with a waterfront seafood meal. On Tripadvisor, the HTMS Prasae memorial averages around 3.7 out of 5 from dozens of reviews, with most praising it as a free historical site where you can actually board a real ship, with beautiful surrounding views for photos.

To be upfront about what to know before going: first, most information signs are in Thai only, and several foreign visitors have noted a lack of English explanations, making it harder to understand the ship's history. Second, only the deck and bridge are open to visitors — the lower hull is locked, so there isn't a huge amount to explore relative to the ship's size. Third, some stairs and walkways are steep and narrow, so seniors and young children should take extra care; the steel deck also gets hot in strong sun, so it's best to visit in the morning or evening and wear comfortable walking shoes. Fourth, parts of the ship show wear and rust over time — it's best approached as a historical memorial visit rather than expecting a fully curated museum experience. And since it's about an hour from Rayong city, if you don't have your own car, it's worth renting one or booking a tour with transport included in advance.

If you want to enjoy Rayong's sea without taking a boat to an island, Mae Ramphueng Beach and Laem Mae Phim Beach are two mainland beaches that fit the bill well. Mae Ramphueng Beach is in Mueang Rayong District, a long stretch of sand running several kilometers, lined with pine trees for shade, with water that shallows gradually — easy and comfortable for families with kids to wade into. Laem Mae Phim Beach, further along in Klaeng District, is a long, open beach popular with locals and Bangkok residents alike for weekend relaxation. Both beaches are around three-plus hours' drive from Bangkok, and only ten to twenty minutes from Rayong city, making them a good fit for a weekend drive-in day trip or an overnight stay.

The charm of these two beaches is their simplicity and easy access to seafood right on the sand. Along the shore are rows of seafood restaurants and food stalls selling shrimp, shellfish, crab, and fish to enjoy under the pine shade, with beach chairs and umbrellas for rent at prices from a few tens to a few hundred baht. Beachfront accommodation ranges from small resorts at a few hundred baht a night up to seaside hotels, and many places have grilling areas where you can barbecue your own food. Evenings here are a favorite time, with sunset views over the sea, cool sea breezes, and fewer crowds than more famous beaches in other provinces — a good fit for anyone wanting a relaxed seaside getaway close to the city rather than crystal-clear water for photos.

To be upfront about what to know before going: first, the water here is on the mainland side, with a greenish-blue tint that isn't as clear as the water around Koh Samet or the Andaman islands. Some stretches carry sediment that makes the water murkier, especially after rain or on rougher days — if you're expecting crystal-clear water, you may be disappointed. Second, during monsoon season (roughly May to October), winds and waves pick up, the water gets murkier, and sea debris can wash ashore — watch for warning flags and avoid swimming in deep water on rough days. Third, getting around here practically requires your own car or a rental, since public transport doesn't reach the beaches conveniently and the beaches stretch far enough that walking between zones is impractical. Lastly, during long holidays, crowds increase and parking and beachfront accommodation fill up quickly — book accommodation ahead and arrive early to get a good spot.

Khao Laem Ya is a low headland jutting into the sea along Mae Ramphueng-Ban Phe Road, right before the pier most people rush past on their way to Koh Samet. Many people drive past without realizing this spot is actually part of Khao Laem Ya–Mu Ko Samet National Park and has a viewpoint with sweeping sea views. From the parking area, a short, easy trail leads up the hill to a spot overlooking Mae Ramphueng Beach's long white sand stretch, with Koh Samet visible floating in the distance. The hill is covered in scrubland and open grassy fields. The photo spot most often mentioned is a white pavilion at the tip of the headland, a landmark angle for photos against the blue sea. Walk a little further and you can head down to swim or stroll on Mae Ramphueng Beach, home to the park office, all in one trip.

What reviewers consistently praise is the sea view and sunset. On Wongnai, Khao Laem Ya averages around 4.5 out of 5 from 34 ratings, with many saying the sea is beautiful and clear, a natural vivid blue, with several angles for photos. Some visitors time their trip specifically for sunset, since the light at that hour makes for beautiful photos and a quieter atmosphere than the busier island side. Another highlight is the low entry fee of just 40 baht per person, and the walk up to the viewpoint isn't as strenuous as a real hike — a good fit for anyone who wants a beautiful view without much effort, or wants a change of scenery on the way to or from Koh Samet.

To be upfront about what to know before going: first, there's a national park entrance fee of 40 baht per person plus a 30 baht vehicle fee, so bring cash — those aged 60 and over enter free. Second, sun and heat — the hilltop is open grassland with almost no shade, so it gets very hot at midday; bring a hat, sunglasses, and sunscreen, or go in the morning or evening when the sun is gentler, with the added bonus of a sunset view in the evening. Third, this spot fairly requires your own vehicle, since the viewpoint sits along Mae Ramphueng Road away from the city and pier, and public transport doesn't reach it conveniently — rent a car, rent a motorbike, or use a tour/transfer service if you don't have your own transport. Lastly, facilities at the viewpoint are limited, so bring your own drinking water and take your trash back down with you, following the park's rules.

Rayong's sea isn't just Koh Samet — there's also a group of small, quiet islands with equally clear water and beautiful shallow coral. A same-day round-trip snorkel island tour departs from Ban Phe, Mae Ramphueng Beach, or Suan Son Beach, then loops around roughly 4-6 islands, such as Koh Man Nai (home to the Sea Turtle Conservation Center under a royal project), Koh Man Klang with its sandbar on the eastern side, Koh Talu, and Koh Kudee. Around Koh Kudee, a wide, shallow coral reef is home to large schools of colorful fish that you can float over without needing to be a strong swimmer. Another highlight is the proximity to Bangkok, making it a good fit for anyone with only a single day off or a weekend to spare.

Join-group tours on large boats are popular because they're affordable per person and usually include lunch, drinking water, and snorkeling gear. Most operators offer a range of boat sizes, from small boats holding around 5-6 people, to mid-sized boats of 15-18, up to large boats of 30-35. Anyone wanting more privacy and control over which spots to visit can charter a boat or take a speedboat, though at a notably higher price. Koh Kudee also carries stories from Sunthorn Phu's classic epic Phra Aphai Mani, with spots like Pha Nin Mangkorn (Dragon Rock), Sin Samut Beach, and Laem Tham Rusi to explore while resting on the beach. Booking through an online platform in advance makes it easier to compare how many islands are covered, what's included in the price, and which pier the tour departs from.

To be upfront about what to expect before booking: the boat ride out to the islands takes a fair amount of time and can get quite choppy at points — many people report getting seasick easily, so take motion-sickness medication beforehand and sit in the middle of the boat. Another point is that Koh Kudee closes to visitors during monsoon season, roughly July 1 to August 15 each year, when waves are rough and underwater visibility drops — some operators adjust their route or suspend service during this window. Koh Talu on the Rayong side has a through-cave where the current on the outer side is strong, so you shouldn't swim through to the outer shore on your own, and should follow your guide's instructions closely. Some coral is fragile, so avoid stepping on or touching it, and use reef-safe sunscreen. Bring a long-sleeved rash guard, a hat, and shoes you don't mind getting wet for a comfortable day out.