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Rio Secreto

Riviera Maya / Cancun / Cozumel / Tulum


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Visit Rio Secreto in the Riviera Maya and explore a labyrinth of underground rivers and cenotes (freshwater sinkholes) dotted with majestic rock formations. You’ll descend to a subterranean cavern to discover stunning stalactites and stalagmites, which slowly developed over centuries, as you drift on a secret river.
  • Swim the pristine waters of this awe-inspiring underground river
  • Explore a magical maze dotted with untouched stalactites and stalagmites
  • Enjoy a light lunch under the jungle canopy
  • Activity duration: 4 hours (not including transportation time to and from the activity)
  • Hotel pick-up and drop-off available only from Riviera Maya and Puerto Morelos resorts


Prepare to explore the Mayan underworld

Arrive at the mystical Rio Secreto aboard comfortable transportation from your Riviera Maya or Puerto Morelos resort, or make your own way if you’re staying in other areas. Knowledgeable bilingual guides will greet you and equip you with a helmet, wetsuit, lamp, and water shoes, before clambering down into the underground caves.

The ancient Mayans thought of this underwater system as a portal to the underworld — and you'll soon find out why. You'll walk and swim on a guided journey to explore a 1,800-foot path through these silent and beautiful caverns. With no artificial lighting available, your handy headlamp will lead the way — twinkling off the waterways.

Float through a bright world of rock formations

Rio Secreto is a visual phenomenon, so keep your explorer eyes peeled for fossils, primordial stalactites and stalagmites, and an array of unique cave-dwelling fish that are completely blind because of the lack of light! Let the river’s current make you glide in the crystal-clear waters, and feel your connection to the longest semi-sunken cave system in the region.

Feeling brave? There’s no other way to appreciate the true wonder of these caverns than by turning off the headlamps. For a small part of the journey, your guide will ask everyone to switch off and just experience the magical underground world. You’ll be in absolute darkness, and the feeling is truly unique. The only sounds you’ll hear are those of waterdrops as they fall into the river from the stalactites.

Return above ground for lunch and refreshments

After you’ve gone with the flow of Rio Secreto’s magical waters, return to the surface and relax under the natural setting of the Riviera Maya jungle. You’ve surely worked up an appetite after channeling your inner geologist, so savor a lunch buffet that includes delicacies like chicken fajitas, cochinita pibil (Yucatan’s famous pork dish), beans, fresh fruit and natural flavored water. When you’re finished, head back to your resort as you reminisce about your adventure in the Mayan underworld.


  • Round-trip transportation from Riviera Maya and Puerto Morelos resorts only
  • Guided excursion through the underground river
  • Equipment: wet suit, wet shoes, helmet with light, towels and lockers
  • Buffet lunch and bottled water

Practical Information

  • Wear a swimsuit, comfortable clothing and footwear
  • Bring sunglasses, a hat, insect repellent, sunscreen, and money for tips and souvenirs (tipping is optional)
  • Pick-up and drop-off times will vary according to resort location
  • Please note that our partner will be providing transportation in their vehicle so that you can enjoy this exciting excursion.
  • Important: If you are in Cozumel and wish to have this experience, please select your pick-up location at the meeting point that best suits you.

Good To Know

  • Tour Language: English
  • Tour Location(s): Riviera Maya
  • Season: All year long
  • Duration: 4 hours
  • Minimum Age Requirement: 4 years old
  • Maximum Weight Permitted: 250 lbs (113 kg)
  • Hotel Pick-up Available: Yes
  • Good Physical Condition Required: No
  • Suitable For Children : Yes
  • Suitable For Elderly: Yes
  • Pregnant Woman Allowed: No

Excursion Options

Rio Secreto
  • Explore this secret river after taking transportation from your Puerto Morelos or Riviera Maya resort

  • Rio Secreto Entrance Only
  • Make your own way to Rio Secreto from any resort and pay only the entrance ticket
  • From $89 USD
    Price per adult
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    Final price includes transportation cost if applicable