Magpie
4.1(54 reviews)

Marathon Key Snorkeling Adventure

From$89.99
3 hours
Key West, USA

About this activity

Enjoy a 3-hour guided snorkeling adventure at Sombrero Reef in Marathon Key, exploring vibrant coral reefs and swimming with tropical fish.

Highlights

  • Explore vibrant coral reefs
  • Swim with tropical fish
  • Relax on a comfortable pontoon
  • Guided tour by experienced crew
  • Ideal for all skill levels

Full description

Dive into the crystal-clear waters of Marathon Key on a 3-hour guided snorkeling adventure at the renowned Sombrero Reef. This experience offers an unparalleled opportunity to explore vibrant coral formations and swim alongside a diverse array of tropical fish. Aboard a comfortable pontoon boat, you'll be guided by experienced crew members who ensure a safe and enjoyable outing for all skill levels. Whether you're a seasoned snorkeler or a first-timer, this adventure promises unforgettable underwater encounters in one of Florida's most picturesque settings.

Included / Excluded

  • 3-hour pontoon boat ride
  • Guided snorkeling at Sombrero Reef
  • All necessary snorkeling equipment
  • Food and beverages

Meeting point

Start Location

Unknown location

Important information

Know before you book

  • Check the weather forecast for optimal snorkeling conditions.
  • Confirm the departure time and location prior to your trip.
  • Ensure you have a valid ID for check-in purposes.

Know before you go

  • Wear comfortable swimwear and bring a towel.
  • Apply waterproof sunscreen to protect your skin.
  • Consider bringing a waterproof camera to capture underwater moments.

Cancellation policy

Free cancellation up to 1 days before the activity starts

For a full refund, cancel at least 24 hours before the scheduled departure time.

Traveler reviews

4.1
54 reviews
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10

Swithed to lower priced tour without refund.

The tour operator and contact # were never provided and the meeting point was an empty parking lot behind Marathon City Offices. The parent company in N.J. switched me to another operator of a catamaran the following day which I could have done myself for almost half that price.

William_BApr 13, 2026VIATOR

Deceptive & manages remotely. Look elsewhere for reliability + knowledge

Didn’t show up & lied re refund timeline

jenniferpZ2556IIMar 6, 2026TRIPADVISOR

I was over charged for...

I was over charged for the trip by booking through Viator. The price was double compared to booking straight through the snorkeling vendor.

Peter_SMar 3, 2026VIATOR

Go directly to snorkle company not Viatot

Lack of communication from Viator or from Snorkle company. Text from one company reservation was with another. Almost missed it. Trip was great. Price through Viator was double what I would have paid going directly to company. I had good experiences throughout Greece Malta and Italy. Disappointmened this time.

Suzanne_LFeb 25, 2026VIATOR

Scammed and out of money

Would have given it zero stars if I could. We were scammed. Given a pin on Google maps, no address, no one there when we arrived. No answer on the phone number. It was behind the City building. They were very sweet and said they've never heard of any tours there. So sad. Last day of vacation. Too late to get another tour. Reputable companies were sold out and very sweet. They said that they have never heard of this buisness. Zero contact information. Says based out of NY. Do NOT get tricked. After looking further, says 3 hour snorkeling cruise as title THEN, no snorkeling, 2 hour cruise- comes with snorkeling equipment! Haha. Out $178 for me and my 8 year old daughter. Trying to get a refund. Viator was easy to get on the phone and tried to call the company as well, no luck. Scammed, sad, and out a lot of money:(

Amy_BFeb 21, 2026VIATOR
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