We reached El Sumidero from Tehuantepec on the way to San Cristobal de las Casas. The distance is about 300 km (185th and 190th National Roads). The road between Tehuantepec and San Pedro Tapantepec spread along the valley close to the Pacific Ocean. Then it went to the cliffs rising up to 900m, descending down to 500m, rising up 1050m once again and descending down to 500m at Tuxtla Gutiérrez.
It took us about 4,5 hours in the way. We started at 8.00 in the morning and were at 12.30 at the place. The boat tour lasted about 2 hours (28 km up to the Christmas tree along the river and same distance back).
You can watch my 4 min 19 sec Video Tehuantepec- Sumidero out of my Youtube channel or here on VT.
If you decide to take the boat tour you must go to Chiapa de Corzo, in Tuxtla Gutierrez there are minivans which takes you there for around 10 pesos(1 USD). Once there the boat tour takes 90 minutes but you will take the boat until the total amount of seat are sold.
If you go by car to see the canyon from the top, take a taxi, the entrance to the park is 10 pesos (1 USD) and the tour takes 2 hours.
For prices in both tours go to my main page in Sumidero.
The easyest way to go to the canyon is to get a minibus in Tuxtla Gutierez. There are two companys running regular service: Transportes Chiapa-Tuxtla (2a Avenida Sur Ote, 2 blocks sout-east from Plaza Civica) and Gomez y Castellanos Minibuses (3a Avenid Sur Ote, 3 blocks south-east from Plaza Civica),
You can go to Chiapa De Corzo and board on a lancha there, or go to Embarcadero Cahuare.
To go back to Tuxtla, just go to the main road and wave to any bus you see.
Best way to visit the Canon is by boat.
They are using very fast boats, in our boat there was room for about 25 persons.
The trip we made lasted about one and a half hour. Price was 8 US dollars per person.
And the boats leave when they are full, and every one has to wear a life jacket.
There are plenty of colectivos that ply the roads to Tuxla Gutierez. This same colectivos pass near the Cañon del Sumidero. Just head to the local bus station and find one of the touts yelling the destination. You may need to wait a while until all the seats are taken, but its well worth the wait! On your way back, just head back to the highway where they drop you off and pick a collectivo going back to town. The collectivo drops you off about 500 meters from the dock where the ships go out touring the Cañon del Sumidero.
There are lots and lots of tour companies in San Cristóbal that do tours to the canyon. They usually have minibusses, take you to the boat, pick you up there, then go to Chiapa de Corzo to have lunch, and on the way back they stop at a crafts market.
Reminds me of one thing :-) There are two ways to go the canyon from San Cris, the small, narrow road, and the high way where the driver has to pay a fee. But that fee is not included in the price of the tour. So our driver asked us to vote which way to go and then we shared the cost equally!