The Mae Sa Waterfalls are located inside Doi Suthep-Pui National Park, about 25 km from Chiang Mai. If you’ve rented a motorbike, take route 107 to Highway 1069 and follow signs for the waterfalls. It’s also easy to rent a songthaew or taxi to take you there (just agree on your price in advance), or combine it with a trip to an elephant camp for a day out in the country. The falls are open from 8am-5pm, admission is 100 Baht for foreigners, 20 Baht for Thai nationals.