Namtok Ngao

Namtok Ngao is a tall cascade dropping over a limestone hillside right beside Highway 4 (Phetkasem Road), about 12 km south of Ranong town — visible from the roadside before the entrance gate. It sits inside Namtok Ngao National Park, so entry isn’t free: 100 THB for foreign adults, 50 THB for children, against 20 THB and 10 THB for Thai nationals. The park is open daily, 08:30-16:30.

A short, mostly flat concrete path leads from the car park to the lower tier and the main pool, an easy 10-15 minute walk that makes this one of the more accessible waterfalls in the province. Higher viewing points require a scramble over wet rock and tree roots — sturdy shoes matter here, not sandals. The falls run year-round, fed by the same hill forest that supplies Ranong’s water, but volume swings hard with the season: a broad, forceful sheet of water in the rains (May-October), a thinner but still reliable flow the rest of the year.

Insider Tip: Visit on a weekday morning. This is a popular stop for tour vans heading between Ranong and the ferry piers, and the lower pool gets crowded fast once the first coach arrives, typically mid-morning.

The pool at the base is swimmable in the dry season, when the current is gentle enough for families to wade in. Watch out: during rainy season the flow strengthens considerably and the current in the plunge pool can pull hard enough that swimming isn’t a good idea — check with park staff before getting in if you’re visiting June-September.

Namtok Ngao makes an easy half-day add-on to a Ranong trip. For a longer waterfall further into the hills, Namtok Punyaban is a quieter alternative in the same province, and Phukhao Ya gives a viewpoint over the same forested hills from a grassy summit nearby.