The Cañón del Sumidero is a deep gorge carved by the Grijalva River, with limestone walls that rise to roughly a kilometre in places and close in so tightly that the river seems to disappear. A boat trip through it is the highlight of many visits to Chiapas. Open launches carry passengers along about thirty kilometres of water, passing waterfalls, hanging gardens, caves, a famous rock formation shaped like a Christmas tree and wildlife such as crocodiles, spider monkeys and herons. Full-day tours leave San Cristóbal in the morning and travel by road to the launch point near Chiapa de Corzo, where lifejackets are handed out and the cruise begins. The boat ride lasts around two hours, with the guide or boatman pointing out sights. Afterwards, many tours continue to viewpoints on the canyon rim, which show the gorge from above and give a very different sense of scale.
On the water
The launches move fast, so the wind is cool and the spray can be strong. Dress in layers, wear a hat that will not blow off and keep your camera secure. The boatman slows for wildlife and for the best-known features, including the Cave of Colours and the Christmas Tree waterfall, which is at its fullest in the rainy season and thinner in the dry months. You may spot crocodiles basking on sandbanks, spider monkeys in the trees and birds such as pelicans, kingfishers and egrets.
Responsible visiting
The canyon is a national park and a significant source of water and power for the state, and rubbish does float down the river, particularly after heavy rain. Do not feed animals or throw anything overboard. Boat operators are generally careful, but you can help by choosing a company with proper lifejackets and a good reputation, and by following instructions. Some days the floating rubbish is more noticeable than others, and that is part of the honest picture of the place.
The viewpoints
Roads climb to a series of miradores along the rim, with names such as La Coyota, La Ceiba and El Tepehuaje. Each gives a dramatic drop to the water, so keep a firm hold of children and stay behind railings. Visit in the morning for clearer light if you can, and expect more haze in the dry season. Afternoon cloud can obscure distant views. The stops are usually short, so photographers should have their cameras ready.
Planning the day
The journey from San Cristóbal takes around an hour or more each way, so a full-day tour is a long but rewarding outing. Many tours also stop at Chiapa de Corzo, a colonial town with a distinctive fountain, for lunch. Bring sunscreen, water, a sun hat, a light waterproof layer and cash for tips, food and fees.
Check the departure time, language and what is included, and prefer an early start to beat the crowds. If you like wildlife, ask the guide to point out birds and animals along the banks. It is easily one of the best days out in the region.
Choosing a departure
Early boats leave before the day heats up and tend to have calmer water, while later departures can be windier. Many travellers sit near the front for views and near the back for fewer splashes. Keep your valuables in a zipped pocket, and wear a hat with a cord. At the end of the day, expect to be tired and hungry, so plan a simple dinner and an early night.
What to expect
The experience
A road transfer, a two-hour boat cruise through the canyon and stops at rim viewpoints.
Best time
Morning departures for clearer light and calmer water.
How long
A full day of roughly seven to nine hours.
Tips
Wear layers and a hat, hold on to your camera and do not litter on the water.
Quick picks
- Best for
- Nature lovers and photographers who want dramatic scenery and wildlife.
- Families
- Children enjoy the boat, but make sure lifejackets fit and stay seated.
- Couples
- A shared adventure with a lunch stop in a colonial town.
- Pair with
- Chiapa de Corzo and the viewpoints.
- Time needed
- A full day.
Good questions
How long is the boat ride?+
Around two hours, depending on the route and the number of stops.
Will I see wildlife?+
Often yes: crocodiles, spider monkeys and many birds are common sightings, but nothing is guaranteed.
Are lifejackets provided?+
Yes, boats supply lifejackets. Wear one for the whole trip.
What should I bring?+
Sunscreen, a hat, a light waterproof layer, water and some cash for tips and snacks.
Is the canyon crowded?+
Mornings are calmer. Holiday periods and weekends can be busy.