BMA Dog Park - Watcharapol is a dog park run by the Bangkok Metropolitan Administration on Watcharapol Road in Bang Khen. It sits beneath the Ram Intra Expressway, so trees and the overhead structure give natural shade and keep it cooler during the day.
There are separate sand-covered off-leash enclosures for large and small dogs, a 340-meter walking and running track, agility equipment, drinking stations, waste bag dispensers, benches and washing points. Restrooms and parking are on site, and the park is generally quiet and clean.
Good to know: register through the BMA online system, check in and out each visit, and carry proof of vaccination. Keep dogs leashed outside the enclosures. There are no shops for food or drinks, and the entrance is hard to find, so use Google Maps.