Snorkeling tour reviews — honest verdicts on six worldwide tours

I’ve compared the six most-booked guided snorkeling tours in the world, read through thousands of traveller reviews, and written a detailed review of each. What the tour is actually like, who it suits, and where it falls short. Every tour here is rated 4.3 or higher and run by a licensed operator. The Outer Great Barrier Reef tour from Cairns is my top all-round pick.
The tours we review

Cairns: Outer Great Barrier Reef Full-Day Tour with Lunch
Full day on a superyacht to two outer reefs with chef-prepared lunch included.
from $139Read the full review ›
Key West: Reef Snorkeling with Drinks & Sunset Option
Cheapest real reef tour; half-day, can get crowded, honest value pick.
from $35Read the full review ›
Silfra: Snorkeling Tour Between Tectonic Plates
Float between two continents in glacial water; drysuit keeps you warm; Iceland.
from $145Read the full review ›
Cozumel: VIP Glass Bottom Boat & Snorkeling 3 Reefs Tour
Best non-swimmer pick; watch reef through glass without entering water.
from $350 per groupRead the full review ›
Cancún: Isla Mujeres Catamaran Tour with Lunch & Snorkel
Full day out, party atmosphere, open bar; snorkel stop is brief.
from $89Read the full review ›
Bora Bora: Lagoon Tour and Snorkeling Experience
Highest-rated tour; swim with rays and sharks in shallow turquoise lagoon.
from $120Read the full review ›See all six tours compared, or read the complete snorkeling guide.
Frequently asked questions
How do you pick which tours to review?
I pick the most-booked, best-rated snorkeling tours on GetYourGuide. Only tours rated 4.3 or higher, so every one here is something I’d actually book.
Are these reviews independent?
Yes. I’m an independent guide, not a tour operator. I earn a small affiliate commission if you book through my links, at no extra cost to you, but that never changes my ratings.