Cañón del Sumidero
This is a long canyon, with steep sides up to 1km high. There is a river running the length of it, upon which boat tours are run.
Flora and fauna
An all inclusive tour from San Cristobal de las Casas costs 300 pesos in high season (as of July 2013). If you don't want to go on a tour you can get there yourself by colectivo. MX$45 is the fare from San Cristobal all the way to Tuxtla, so your fare should be less than this, but not much - the return fare is MX$40. Ask the driver to drop you opposite the “embarcadero” - look out for the signs about 1km after you pass the junction for Chiapa de Corzo and remind him. Do not get out at the Chiapa de Corzo turnoff itself, or change to a colectivo that takes you into town, you will have wasted time and money.
After getting dropped near the embarcadero cross the highway and walk a couple hundred metres down the small road until you see a parking lot with lots of busses and stalls selling the usual tourist souvenirs.
There was a price rise sometime between 2013 and 2014, because the price for a boat ride is now MX$200 (as of October 2014). This is the official price and non-negotiable. Make sure you receive a wristband after paying, you will need to show it to a park ranger at a checkpoint downriver. The boatride takes about two hours and the boats are unprotected from the elements, so bring appropriate clothing for the prevailing conditions (and sunscreen if you’re lucky and the sun is shining).
MX$200 for a boatride.
Crocodiles and birds in beautiful nature.
Take lots of pictures.
There are plenty of stalls near the embarcadero selling the usual tourist knick knacks.
There are a couple of restaurants in front of the embarcadero and a small shop selling basic snacks.