Most-reviewed tours here
Ruins, Cenote, Lagoon, Beach Lunch
Tulum Guided Tour, Magical Cenote, Lagoon Snorkeling and Beachside Lunch. Rated 4.9 across 1,975 reviews. Runs 6 hours 30 minutes (approx.). From $119.
Six tours run snorkelers through the freshwater caves and lagoons around Tulum, from a quick three-and-a-half-hour trip to a private underground river swim.
Short answer
The most-reviewed listing is Tulum Guided Tour, Magical Cenote, Lagoon Snorkeling and Beachside Lunch, at 4.9 across 1,975 reviews over about six and a half hours. Magical Cenote and Paradise Lagoon Snorkeling Adventure follows at 4.9 across 886 reviews. Cenote Triple Adventure Tour holds a 5 rating across 467 reviews. All three carry free cancellation.
Most-reviewed tours here
Tulum Guided Tour, Magical Cenote, Lagoon Snorkeling and Beachside Lunch. Rated 4.9 across 1,975 reviews. Runs 6 hours 30 minutes (approx.). From $119.

3 hours 30 minutes (approx.)
Magical Cenote and Paradise Lagoon Snorkeling Adventure. Rated 4.9 across 886 reviews. Runs 3 hours 30 minutes (approx.). From $79.
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4 hours (approx.)
Cenote Triple Adventure Tour in Tulum. Rated 5.0 across 467 reviews. Runs 4 hours (approx.). From $129.88.
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5 hours (approx.) · Tulum Underground
Private Guided Cenotes and Underground River Exploration runs through Tulum Underground. Rated 5.0 across 171 reviews. Runs 5 hours (approx.). From $199.
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Tulum: Cenote Trail Bike Tour. Rated 4.9 across 143 reviews. From $119.
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4 hours 30 minutes (approx.)
Discovering Breathtaking Cenotes in Tulum. Rated 5.0 across 7 reviews. Runs 4 hours 30 minutes (approx.). From $149.
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