Descend into the Yucatán’s flooded limestone caves on the Río Secreto Plus half-day tour. Small groups, a rappel, short bike sections and a multimedia dry route combine spelunking with mild adventure—ideal for travelers comfortable in water and low-light conditions.
Descend into the Yucatán’s flooded limestone caves on the Río Secreto Plus half-day tour. Small groups, a rappel, short bike sections and a multimedia dry route combine spelunking with mild adventure—ideal for travelers comfortable in water and low-light conditions.
The entrance gate sits low against a scrubby limestone escarpment; damp air from the cavern breathes out as the group moves from sunlight into a dim, cool world. On the Río Secreto Plus half-day tour, travelers step into soaked caverns where lamp light drags shadows across stalactites and an underground current dares you onward.
Verified experiences and guided adventures in the surrounding area.
Operated by TUI MEXICANA SA de CV · Playa del Carmen, Quintana Roo
The entrance gate sits low against a scrubby limestone escarpment; damp air from the cavern breathes out as the group moves from sunlight into a dim, cool world. On the Río Secreto Plus half-day tour, travelers step into soaked caverns where lamp light drags shadows across stalactites and an underground current dares you onward.
These caves are part of the Yucatán’s extensive karst system—limestone shaped by millennia of rain and groundwater—where collapsed sinkholes and subterranean rivers chart a geological history visible in mineral curtains and flowstone. The guides frame the experience with Mayan context: these flooded grottoes were long associated with Xibalbá, the underworld in Mayan cosmology, and local culture treats them with respect as living features of the land.
The Plus itinerary layers in on-land adventure—short guided bike segments and a controlled rappel—before moving into the dry route with projection displays and finally the Salón de la Paz, an echoing chamber where the river widens.
Practical notes: expect 3–5 hours total with about 90 minutes in the cave; small groups (max 10 per guide) keep the pace steady. The operator supplies neoprene suits, helmets with lamps, life jackets, towels and lockers. Wear quick-dry layers under the suit, bring a waterproof camera or case, and be ready for slippery stone and chest-deep pockets of water in places. If you have back, heart, or pregnancy restrictions, this trip isn’t recommended. Visit early to avoid heat and larger tour groups, and plan for a regional buffet after the activity to refuel.
moderate.
3–5 hours.
Participants should have a moderate fitness level—able to handle some walking on uneven terrain, short bike sections, and chest-deep river passages.
About 90 minutes underground is typical; the full experience including transfers and land activities runs 3–5 hours.
Yes—the operator supplies neoprene suits, life jackets, helmets with lamps, towels and lockers.
Basic swimming ability and comfort in chest-deep water are recommended; life jackets are used, but the environment can be challenging for non-swimmers.
Yes, but use a waterproof case or a secure strap—phones and cameras can get splashed in the river and on wet rock.
The caves are part of a broader Yucatán karst network long known to Maya peoples; many underground waterways were considered access points to Xibalbá in pre-Columbian belief.
The reserve manages visitor numbers and requires guides and suits to minimize human impact; follow route rules, avoid touching formations, and use reef-safe sunscreen outside the cave.
TUI MEXICANA SA de CV operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




The entrance gate sits low against a scrubby limestone escarpment; damp air from the cavern breathes out as the group moves from sunlight into a dim, cool world. On the Río Secreto Plus half-day tour, travelers step into soaked caverns where lamp light drags shadows across stalactites and an underground current dares you onward.
The entrance gate sits low against a scrubby limestone escarpment; damp air from the cavern breathes out as the group moves from sunlight into a dim, cool world. On the Río Secreto Plus half-day tour, travelers step into soaked caverns where lamp light drags shadows across stalactites and an underground current dares you onward.
These caves are part of the Yucatán’s extensive karst system—limestone shaped by millennia of rain and groundwater—where collapsed sinkholes and subterranean rivers chart a geological history visible in mineral curtains and flowstone. The guides frame the experience with Mayan context: these flooded grottoes were long associated with Xibalbá, the underworld in Mayan cosmology, and local culture treats them with respect as living features of the land.
The Plus itinerary layers in on-land adventure—short guided bike segments and a controlled rappel—before moving into the dry route with projection displays and finally the Salón de la Paz, an echoing chamber where the river widens.
Practical notes: expect 3–5 hours total with about 90 minutes in the cave; small groups (max 10 per guide) keep the pace steady. The operator supplies neoprene suits, helmets with lamps, life jackets, towels and lockers. Wear quick-dry layers under the suit, bring a waterproof camera or case, and be ready for slippery stone and chest-deep pockets of water in places. If you have back, heart, or pregnancy restrictions, this trip isn’t recommended. Visit early to avoid heat and larger tour groups, and plan for a regional buffet after the activity to refuel.