Ride a short jungle loop, rappel into a cavern, then follow a crystal-clear underground river lit for a dramatic geology show—Rio Secreto Plus combines biking, swimming and spelunking in a single half-day adventure from Playa del Carmen.
More ways to explore the area's outdoor wonders
Stepping off the van at the Rio Secreto reception, light softens as guides lead the group toward a cavern mouth where limestone walls narrow and the air cools.
Difficulty
moderate
Duration
6 hours (total, door-to-door)
Fitness Level
Moderate fitness: comfortable walking, short swims, and basic climbing/rappelling movements
Wildlife
History
The caves form part of the Yucatán’s karst landscape and intersect with Mayan cultural ideas about caves as portals to Xibalba—the underworld where rituals and offerings were historically practiced.
Conservation
Rio Secreto manages visitor access to reduce erosion and contamination; visitors are asked to use reef-safe products and avoid touching delicate formations to preserve slow-growing speleothems.
Reserve your spot on the IMMERSE YOURSELF in a Secret River with Plus ADVENTURE with Bike route & Rappel today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear closed-toe water shoes
Surfaces are slick and rocky; sturdy water shoes with a good grip improve traction during wading and short hikes.
Use biodegradable sunscreen
You’ll travel above and below ground—choose reef-safe sunscreen to protect local waterways and coral systems.
Expect cool cave water
Even on hot days the underground river stays cool; bring a wetsuit if you get cold easily (wetsuits are provided but you may bring your own).
Secure valuables in a dry bag or leave them behind
Lockers are available but limited—carry only essentials and use a small dry bag for phones and documents if needed.
Closed-toe water shoes
Protects feet on slippery cave floors and during river wading.
Quick-dry clothing
Light layers that dry quickly after the river sections keep you comfortable.
summer
Small dry bag
Keeps phone, wallet and spare clothes dry between water sections.
Biodegradable sunscreen
Protects skin above ground while minimizing harm to local aquatic ecosystems.
summer