Get off the big boats and onto a private three‑hour snorkel cruise from Marathon that targets Sombrero Reef and nearby sandbars. Ideal for families or small groups, the trip pairs guided reef snorkeling with flexible time for swimming or relaxing on shallow sandbanks.
More ways to explore the area's outdoor wonders
You push off from a low-profile marina in Marathon, the Atlantic rubbing cool against the hull as the captain points the 31‑ft center console toward a ribbon of reef and scattered sandbars.
Difficulty
easy
Duration
3 hours
Fitness Level
Suitable for most fitness levels; guests must be independently able to swim and climb a short ladder into the boat.
Wildlife
History
Sombrero Key Light and the Keys’ reef system played key roles in 19th‑century navigation and maritime trade; local boat culture evolved around reef fishing, sponging, and tourism.
Conservation
The Florida Keys National Marine Sanctuary protects many reefs here—visitors are asked not to touch coral, use reef‑safe sunscreens, and follow guidance to minimize anchoring impact.
Reserve your spot on the 3 Hour Private Snorkeling in Marathon Florida today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef‑safe sunscreen
Use SPF that’s labeled reef‑safe to protect corals and avoid applying just before entering the water where it can wash off,
Practice boat entry and exit
Be prepared for a short ladder or step entry—wear water shoes if you need extra grip and ask the crew for help if necessary.
Hydrate and time your trip
Morning trips usually offer calmer seas and better visibility—drink water before boarding and between snorkels.
Protect your gear
Keep electronics in a dry bag or leave valuables onshore; salt and spray are constant companions out here.
Mask, snorkel and fins
Provided by the operator but bring your own for best fit and comfort.
Reef‑safe sunscreen
Protects skin from intense sun and helps preserve coral ecosystems.
summer
Rash guard or lightweight long sleeve
Adds sun protection and a bit of warmth in breezy conditions.
spring
Waterproof dry bag
Keeps phone, keys, and snacks dry during transfers and on the sandbar.