5 star rating: Highly Recommended 4 Reviews

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  • Location: Cancun, Mexico
  • Duration:  7 hours (approx.)
Discover the mysteries of the Yucatan on a visit to Rio Secreto Nature Reserve. Enjoy an exciting afternoon adventure at Rio Secreto, where you’ll wade and swim through an underground river and encounter the stillness of a crystal cave. You can select hotel pickup and drop-off, or meet your guide at a central location in Cancun.


  • Rio Secreto Nature Reserve
  • Swim through an underground river and enjoy the tranquility inside an ancient cave
  • See gorgeous crystal-like cave formations above the turquoise water
  • Complimentary pickup and drop-off from most Cancun and Playa Mujeres hotels (if option selected)

Recent Photos of This Tour

What You Can Expect

Rio Secreto Underground River Tour with Crystal Caves

Visit Rio Secreto Naure Reserve

Your guide will either pick you up at your hotel or meet you at Plaza Kukulkan before departing for Rio Secreto Nature Reserve in the afternoon. Upon arrival, you’ll receive a safety briefing and equipment – including wetsuit, life vest, water shoes and a hardhat with lamp – before your expedition begins!

Follow your guide into Rio Secreto’s underground cave, and admire the stunning crystal-like stalactites and stalagmites as you walk along a path and swim through the turquoise water. Venturing deep inside the cave, take in the peaceful stillness amid the dramatic mineral formations and vivid colors of your pristine surroundings.

When you emerge, enjoy a shower at Rio Secreto’s facility or hang out for a bit in a hammock before returning to the plaza or your hotel.

Customer Reviews

5 star rating: Highly Recommended October 2014

The caves were gorgeous!! We were in the caves with 1 other couple, the guide and the photographer. On the ride from the reception area was long and bumpy, and we were able to see a few wild creatures!! A huge boa, a tarantula crossing the dirt roads (they stopped the van to make sure that it was able to cross into the jungle safely), and an iguana popping up out of her hole! The guide Victor was very nice and the short trek to the "Bellybutton" of the cave was short and informational. As soon as we were into the cave, we were all speechless at the magnificence of it all! We were able to grab walking sticks if we wished and they came in handy!! Although there were many bumps along the way, everyone helped each other. Everything about the tour was amazing! At the end, we were given celebratory shots of a Mayan alcohol (or water) and you were able to purchase a few things! The food included was delicious! I would love to just swim in the caves all day! Definitely a MUST DO!!

5 star rating: Highly Recommended October 2014

Not for the faint hearted was hard work going through the cave and best if you can swim but not necessary but the things you see is amazing the staff were amazing even with the less confident in the water the cave was out of this world

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Tour code: 3206CUNRIO


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