We pick on price, what is included, group size and who the trip suits. No company pays to be picked.
Our pick
From $48.32 · 3 hr · 1,619 reviews · cancel: 24 hr, full refund
The cheapest reef snorkel we found on Viator, with the most reviews: 1,619. A 3-hour sail to the reef on a sailing catamaran, with gear, then beer, wine and soft drinks after you swim.
Who it's not for: anyone who wants a small group or a morning trip.
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Best morning trip
Fury Water Adventures: Reef Snorkel: Morning Mimosas or Afternoon Margaritas
From $49.42 · 3 hr · 699 reviews · cancel: 24 hr, full refund
Fury's reef snorkel runs as a morning trip with mimosas or an afternoon trip with margaritas. Gear, a snorkel vest and instruction are included. Stairs lead into the water.
Who it's not for: non-swimmers. Fury says you must be able to swim.
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Best for weak swimmers
Danger Charters: Half-Day Sail, Kayak and Snorkel
From $125 · 4.5 hr · 1,829 reviews · cancel: 24 hr, full refund
A wooden schooner, 20 people max, in the calm, shallow backcountry. A crew member swims with you, then you kayak and sail. 1,829 reviews, the most of any snorkel trip here.
Who it's not for: anyone set on the outer reef.
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Best small group
Honest Eco: Dolphin Watch and Guided Snorkel aboard SQUID
From $143.05 · 4 hr · 594 reviews · cancel: 24 hr, full refund
Watch dolphins, then a guide snorkels with you. Small groups, and swimming is not required. Book on Viator and you can cancel up to 24 hours ahead. Booking with Honest Eco directly needs 6 days' notice.
Who it's not for: tight budgets. It costs about three times our pick.
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Two reefs in one trip
From $73.21 · 3 hr · 203 reviews · cancel: 24 hr, full refund
Fury's fast catamaran stops at two reefs, about 1 hour 15 minutes of snorkeling in total.
Who it's not for: anyone who wants to sail; this is a power catamaran.
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Dry Tortugas
From $260 · 10 hr · 528 reviews · cancel: Non-refundable
The ferry to Dry Tortugas National Park, 70 miles out. Fort Jefferson, beaches and snorkeling, with breakfast and lunch included.
Who it's not for: anyone who might need to cancel. This one is non-refundable on Viator.
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