Pang Sida National Park is located in Sa Kaeo province about 220km east of Bangkok. However, due to the Covid-19 travel restrictions, the national park has been closed since May 1. This leaves you with the other option of Kaeng Krachan National Park in Phetchaburi, about 190km southwest of Bangkok. The national park covers 2,915km² near the border with Myanmar. Kaeng Krachan National Park is also open for overnight stays.

Source: Bangkok Post May 13, 2021 06:08 UTC