Doi Suthep-Pui National Park: Doi Suthep-Pui National Park has prohibited tourists from swimming in Mae Sa Waterfall after heavy rain overnight caused flash floods.
According to Thai News Agency, the Office of Water Resources 1 issued a warning announcement (yellow level) at Ban Nong Hoi, Pong Yaeng Subdistrict, Mae Rim District. The accumulated rainfall in 12 hours was 103 millimeters, prompting Mr. Thongchai Narass, Chief of Doi Suthep-Pui National Park, to issue an order prohibiting tourists from playing in Mae Sa Waterfall. The accumulated heavy rain has caused the waterfall to be muddy red, the water current to be fast, and the water level to rise. Tourists are allowed to visit the area to enjoy nature but are restricted from entering the water.
Similarly, Ob Khan National Park has announced a temporary closure of tourism and accommodation. The situation of the Khan River on 25 May 2025 at the Ob Khan National Park office shows that the water level has been continuously rising. The park will provide prompt updates on the situation and has warned the people of the Khan River basin to be on the lookout for flash floods. Particular attention is required from residents of Ban Huai Thong, Nam Bo Luang Subdistrict, San Pa Tong District downwards, as there is a continuous flow of water from Samoeng District increasing the water level passing the front of the park.