If you see one waterfall in Thailand, make it Erawan.
A clear stream drops through seven tiers of limestone pools inside Erawan National Park, each a different shade of jade, and you can swim in most of them. The top tier is said to resemble Erawan, the three-headed elephant of Hindu-Buddhist mythology — hence the name.
Crucially, it’s spring-fed through limestone, which is why it stays that colour even in the dry season when most Thai waterfalls have stopped being waterfalls.
The seven tiers
A well-made trail follows the stream upward. It gets progressively harder and progressively emptier — most visitors stop at tier two, which means the best of it is quiet.
Tiers 1–3 — An easy, mostly paved walk of about 20 minutes. Tier 2 has the famous wide pool with the sloping rock, and it’s where most people swim. Family-friendly and busy.
Tiers 4–5 — The postcard pools. Brilliant emerald water, a natural rock slide at tier 4, and noticeably fewer people. This is where the walk starts to feel like a walk.
Tiers 6–7 — Steeper, wilder, with roots and wet rock to scramble over. Tier 7 is the payoff — a tall cascade into a deep pool, usually with only a handful of people at it. Give yourself the time.
Practical advice
- Arrive at opening (8am). Cooler, emptier, and rangers stop upper-tier entry from mid-afternoon.
- Water shoes or old trainers. Wet limestone is genuinely slippery and flip-flops are useless above tier three.
- The fish nibble. Small freshwater fish clean dead skin off your feet, exactly like a fish spa. There’s no avoiding them in the lower pools.
- No plastic bottles above tier two. The park charges a refundable deposit to stop litter, which is a good rule. Bring a reusable bottle.
- Bring cash. Entry is ฿300 for foreign adults and the gate doesn’t take cards.
- No food above tier two either — eat at the bottom.
Pair it with the River Kwai
Kanchanaburi’s other identity is sobering. This was the western end of the Death Railway, built by Allied prisoners of war and conscripted Asian labourers under Japanese occupation, at an appalling human cost.
The Bridge over the River Kwai still stands and still carries trains. The Thailand–Burma Railway Centre museum and the immaculate Kanchanaburi War Cemetery opposite it are both excellent and quietly devastating. Hellfire Pass, an hour further out, is a cutting hacked through rock by hand, with an outstanding memorial museum.
Doing the falls and the history in one day from Bangkok is possible but rushed. Two days, with a night by the river, is much better — and Kanchanaburi’s floating raft-house guesthouses on the Kwai are lovely.
Also nearby
Huay Mae Khamin waterfall — Erawan’s quieter twin, another 90 minutes past the reservoir. Also seven tiers, also swimmable, a fraction of the visitors.
Sai Yok Noi — Small, free, right by the railway line. Easy add-on.
Erawan Cave, above the falls, with a large reclining Buddha.
Make it easy
The drive is straightforward and the park is simple once you’re there — the hard part is the early start and the distance. We arrange a private van and driver from Bangkok with a 7am pick-up to beat both the traffic and the heat, and can add an overnight by the river to turn it into a proper two-day trip.
Van and driver day-trip prices → · Thailand’s best waterfalls → · Day trips from Bangkok → · Plan your Kanchanaburi trip →
