Take a tour to an almost virgin part of Chiapas, the Montes Azules Reserve; the Santo Domingo River crosses the reserve and you’ll have to hike for about an hour to reach the Las Nubes Waterfall with over 150 meters tall (500 feet). Bring a waterproof camera to take pictures from the suspension bridge.
Afterwards, you’ll head to Comitán de Dominguez, the third Magic Town in Chiapas. Watch the beautiful 16th Century Santo Domingo Church and the main square. If there’s enough time, you can also visit the markets in town.