Rio Secreto underground river tour
Well reviewedGuided cave walk and swim
A guided walk and swim through a lit cave system with an underground river and stalactites. It sits in a nature reserve south of Playa del Carmen.

- Time needed
- About 3 hours in total, with a 90 minute river portion.
- Price
- About USD 89 to 119 per adult. The lower figure is admission only; the higher one includes the tour and transport from the Riviera Maya. Prices change.
- Getting there
- It is close to Playa, about 15 minutes and 5 miles by taxi or shuttle. The higher price includes transportation from the Riviera Maya.
- Best time
- Book ahead.
RatingsCivitatis 9.2/10 (118)Trip.com 4.6 (211)as of Oct 2026
Not the owner's recommendations. Ratings are the figures we read on the date shown, and they change.
Known for
- The tour mixes walking and swimming through an underground river.
- The cave system is lit and has stalactites.
- It is inside a nature reserve south of Playa del Carmen.
- A wetsuit, a helmet with a light and a life jacket are listed as included.
- The river portion of the tour lasts about 90 minutes.
Practical tips
- You must shower before entering to remove lotion, makeup and gel. The site does not say anything about biodegradable products.
- Arrive at the ticket office at least 20 minutes before your tour.
Stay a short walk away
Penthouse 315 at Aldea Thai sleeps 10, with a private heated rooftop pool and ocean views, a 1-minute walk (about 230 ft) from Mamitas Beach. The penthouse is also for sale.