Siriphum Waterfall

Siriphum Waterfall drops in two parallel streams down a cliff face close to Doi Inthanon National Park’s headquarters, near Khun Klang village around Km 31 on Highway 1009. There’s no separate fee for the waterfall, but reaching it means paying Doi Inthanon’s park entrance — 300 THB for foreign adults, 150 THB for children, and 60 THB for Thai adults — at the checkpoint on the way up the mountain.

The name blends Queen Sirikit’s and King Bhumibol’s names, and it fits: the falls split into two distinct streams rather than a single sheet, which is what most visitors mean when they call it the “twin waterfall.” A short walk of around 100 metres from the car park near the headquarters area brings you to a wooden viewing platform overlooking the drop — this is a viewpoint stop, not a hike, and it sits right next to the Doi Inthanon Royal Project, the agricultural station that’s been running since 1979 to help hill communities shift from opium to legal crops.

Insider Tip: Come outside the June-to-October wet season and the flow thins noticeably — Siriphum’s water volume swings more with the seasons than the park’s better-known falls lower down, so if a dramatic cascade is the goal, time the visit for after heavy rain rather than the cool dry-season months most people pick for the mountain views.

Because it sits right by the park headquarters rather than down a side road, Siriphum tends to draw fewer visitors than Doi Inthanon’s other named waterfalls — most day-trippers head straight for the summit boardwalk or the twin royal chedis and treat this stop as a five-minute add-on rather than a destination in itself. That’s part of the appeal: a quiet platform over a genuinely tall drop, with none of the queue that builds at the chedis on weekends.

Watch out: This is a viewing platform, not a swimming spot — the drop is into a narrow canyon rather than an accessible pool, so don’t plan on getting in the water here the way you might at Mae Klang Falls near the park’s lower entrance.

Doi Inthanon National Park itself is worth the full day: Namtok Wachirathan, an 80 m single-tier fall visible with mist from the road, and Mae Ya Waterfall, Thailand’s tallest single-drop waterfall at around 260 m, both sit within the same park boundary and the same entrance ticket.