🔄 Updated 21 Jun 2026
If you're in Sa Kaeo with an afternoon-into-evening to spare, Khao Chakan slots in nicely. It's close to town — no long drive like Lalu or the Rong Kluea border market — and the hill itself is a cluster of three limestone peaks lined up side by side. The base is a Forestry Department arboretum, with Khao Chakan cave temple in the same grounds. Most people come to pay respects, climb the through-cave for the view in the afternoon, then come back down to watch the bats in the evening, all in one go.
Tham Thalu — Climbing the Through-Cave for the View
Khao Chakan has plenty of small caves scattered across the hill — local sources count around 12, including Tham Hanuman, Tham Maha Singh, Tham Nam Thip, and Tham Kaeo Phlai Chumphon. But the one actually open to visitors is Tham Thalu (the "through-cave"), and it's the highlight. The cave is a gap that opens right through the hill from one side to the other, so once you climb up you get light coming through and a view over the fields below. The way up is a concrete staircase that turns into a wooden one, more than 300 steps total, zigzagging up the hillside. The last stretch gets steeper and narrower, so take it slow.
- Tham Thalu — the gap that opens through both sides of the hill; climb up for a view over the fields and limestone peaks. This is the main cave open to visitors.
- The way up — concrete steps into wooden steps, more than 300 in all, zigzagging up; the final stretch is steep and narrow.
- What to bring — wear sneakers or shoes with good grip and carry water, because the sun and the climb will tire you out more than you'd expect.
Best time to climb
Climb Tham Thalu in the late afternoon once the sun softens — it's far easier than the midday heat. By the time you come down it lines up with the wait for the bats at dusk. And if 300 steps aren't for you, you can simply stay at the base, pay respects, and watch the bats — no climb required.
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Khao Chakan Cave Temple & the Arboretum
At the foot of the hill sits Khao Chakan cave temple — shady and calm, with big trees overhead and the limestone hill as a backdrop. People like to pay respects and make merit here before heading up. The temple grounds and arboretum are home to a large troop of monkeys, and they're pretty used to people, wandering around and taking food from visitors all over the area. They're part of the character of the place, but keep an eye on your snacks and bags — the monkeys grab things fast. Tucking plastic bags and food away inside a zipped bag is the safer move.
- Location — Khao Chakan district, about 17 km from Sa Kaeo town; a short drive from the city.
- Entry — free, no charge; there's parking for both cars and larger vehicles, plus restrooms.
- The monkeys — lots of them throughout the grounds; watch your snacks and bags, and don't walk around holding plastic bags.
A Million Bats Streaming Out at Dusk — the Reason to Come
The reason a lot of people make the trip to Khao Chakan specifically is the bats. The small caves up in the hill hold an enormous colony, and around dusk — roughly 6 PM, before sunset — they start pouring out of the cave together in a long, unbroken ribbon across the sky, heading off to feed for the night. It plays out for several minutes, the line of bats stretching across the horizon. People start gathering at the spots with a clear view of the cave well before six.
Seeing the bats clearly
The bats start coming out around 6 PM, so arrive a little early to grab a spot with a clear view of the cave mouth. On a clear night with little cloud you'll see the stream of bats cut against the sky much more sharply, and the dry season is easier than the rainy months. If you want good photos, bring a camera or phone that handles low light — and go in expecting them to move fast, so they're a little tricky to catch.
Cafes & Flower Fields Around Khao Chakan
Over the last few years a handful of cafes and flower gardens have opened up around Khao Chakan, using the limestone hill as a backdrop — handy for resting while you wait for the bats. Popular stops include Wood House Khao Chakan, a cafe with view seating and seasonal flower fields (recently it's been a field of yellow cosmos), and the Mee Khao Mee Rao garden, which has various flowers and wooden bridges to walk and photograph. The blooms come and go depending on what each place has planted, so check the cafe's page before you go to see what's flowering and whether they're open.
Wood House Khao Chakan
Cafe with limestone-hill views, seating, and seasonal flower fields — a good place to rest while you wait for the bats.
Mee Khao Mee Rao
Flower garden with various blooms and wooden bridges to walk and photograph; flowers are pretty in spells depending on what's planted — check their page first.
Getting to Khao Chakan & How Long to Spend
Khao Chakan is in Khao Chakan district, about 17 km from Sa Kaeo town — a short, easy drive with clear signage. Coming from Bangkok, you'll pass Khao Chakan before you even reach Sa Kaeo town. Sa Kaeo doesn't have much in the way of local public transport, so the easiest way is your own car or a rental. Visiting doesn't take long: come in the late afternoon, climb the cave, pay respects, then wait for the bats in the evening — budget around 2–3 hours and you're set. It works well as the last stop of the day before heading back to your accommodation.
Half a Day at Khao Chakan
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