
Riviera Maya Cenotes · Mexico · Cenote · Cave & cavern · Freshwater
Siete Bocas
Seven round sinkholes linked by one cavern line
Area photo: diego_cue · CC BY-SA 3.0
Siete Bocas, Spanish for seven mouths, is a patch of karst on the Ruta de los Cenotes west of Puerto Morelos with seven round sinkholes, each with stairs down to the water. The water does not reach the ceiling, making it a cavern dive that drops along a wall and returns under the other openings.
Also known as 7 Bocas, Cenote 7 Bocas.
Where it is and how deep
20.8761° N, 87.0436° WApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
Divers climb down the stairs of one sinkhole and descend along one of its walls to about 30 m (98 ft). On the way back up the route switches to another cavern line that passes beneath all the other openings, with formations overhead and light falling in from each of the mouths in turn. Mojarra Mayas, catfish and baby mollies gather along the return line.
Marine life and season
- Freshwater fish
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good |
Season follows Riviera Maya Cenotes: Cenote water temperature holds steady all year; Dos Ojos gets busier in the December–April peak season while most other cenotes stay quiet.
Questions divers ask
Is Siete Bocas a cavern or a cave dive?+
A cavern dive: the water level does not reach the ceiling, and the descent follows a wall to about 30 m before a cavern line leads back under the other sinkholes.
Sources
- Cenote 7 Bocas Diving: 7 Openings, Light Beams & Fossils — DeepDiveMexico
- Cenote Diving in 7 Bocas — Rigo The Cenote Guide
- Cenote Siete Bocas — OpenStreetMap
More dive sites in Riviera Maya Cenotes
A sulphide cloud you can put a hand through, at 27 m
A mangrove channel dive with no overhead at all
Lily pads on the surface, decorated cavern underneath
Jump through the roof or take the ladder beside it
An air dome you can surface in, under two levels of stalactites
Cenote
Where cave divers found three prehistoric skeletons
Cenote
A crossing to the neighbouring Rainbow Cenote
Cenote
Nine metres of clear water used for course skills
Similar dives elsewhere
Taíno artefacts in place in a 9 m freshwater cave
Cave & cavern
Dan's Cave
South Abaco Blue Holes · Bahamas
Cascade Room entrance leads to crystal rooms with names like Fangorn Forest
Cave & cavern
Ralph's Cave
South Abaco Blue Holes · Bahamas
Formations 13,000 to 350,000 years old inside a deep, roller-coaster passage
Fresh water over salt, and 38 degrees below the thermocline






