Golden-hour view cruising the calm water past the mangrove shoreline in Marathon
Marathon, Florida Keys

Marathon Florida Boat Tours

Snorkeling, sandbar days and sunset cruises
with the local Mermaid family.

Marathon is where the Mermaid family began. Come explore the heart of the Florida Keys aboard the Marathon Mermaid, the fastest, newest and most comfortable boat in Marathon.

5.0 · 3,769 Reviews Google
4.9 · 1,300 Reviews Tripadvisor
Travelers' Choice 2026 Tripadvisor Award
#1 of 161 Outdoor Activities in Marathon
The Heart of the Florida Keys

Boat tours with the family who calls Marathon home

We built the Marathon Mermaid from the ground up, custom-designed and built right here in Marathon, so we could share the waters we fell in love with everyone who visited our beautiful home. From here you can snorkel the famous Sombrero Reef, spend the day at a local sandbar, or cruise around the iconic Seven Mile Bridge at sunset. Come see our home on the water with the local family who knows it best.

Marathon Mermaid Experiences

Choose your day on the water

Every trip departs from our dock in Marathon. Book any of them as a private charter for your group.

Aerial view of the Marathon Mermaid catamaran over the turquoise waters of the reef Marathon

Sombrero Reef Snorkeling

Snorkel the famous Sombrero Reef, part of the third largest barrier reef in the world, aboard the fastest and newest boat in Marathon.

3 Hours All Ages
From$85.95
Marathon The Marathon Mermaid anchored at a turquoise Keys sandbar

Snorkel + Sandbar Combo

Snorkel Sombrero Reef then relax at the Molasses Key sandbar with Marathon Mermaid, on one 4 hour combo trip with gear, kayaks and snacks included.

4 Hours All Ages
From$115.95
Aerial view of the Marathon Mermaid anchored at the turquoise sandbar with the Seven Mile Bridge behind Marathon

Sandbar Experience & Sightseeing

A fun and relaxing day at the sandbar that is a go-to spot for the locals, wrapped up with a sightseeing cruise around our island.

4 Hours All Ages
From$99.95
The Marathon Mermaid catamaran glowing against a golden Keys sunset Marathon

Sunset Cruise

Sail into a famous Keys sunset around the iconic Seven Mile Bridge with champagne for guests 21 and older, music and unforgettable views.

2 Hours All Ages
From$79.95
A lively group of women cheering with drinks on the bow under a bright blue sky Private

Private Charters

Book any of our trips as a private charter and have the whole boat to your group. Perfect for birthdays, family reunions and celebrations.

Your group only
Available onAny Marathon tour
Why Marathon

Three reasons to cruise with us

Sombrero Reef

Snorkel the famous Sombrero Reef lighthouse and the vibrant coral of the third largest barrier reef in the world.

Local Sandbar

Spend the day floating at the local sandbar our crew grew up on, shallow enough to stand and made for relaxing.

Seven Mile Bridge Sunsets

Cruise around the iconic Seven Mile Bridge as the Keys sky lights up in vibrant oranges, pinks and purples.

What's Onboard

Built for comfort on the water

The Marathon Mermaid was designed from the ground up to be the most comfortable boat in Marathon.

Large shaded lounge
All cushioned seating
Snacks & refreshments included
Bluetooth Radio Stereo System
Bathroom onboard
Kayaks
Paddleboards
Lily pad + water toys
Snorkel gear provided
Reef-safe sunscreen
Getting Here

Finding the dock in Marathon

You will find us at 1688 Overseas Highway, Marathon, FL 33050, inside the Hammocks at Marathon resort. There is plenty to see, so give yourself time to park and walk to the boat.

Check-in starts 30 minutes before departure. Please be at the dock no later than 15 minutes before check-in, or we may not be able to board you and no refund can be given.

Questions? Call or text us at 305-842-1492.

Guest Reviews

What our Marathon guests say

4.9 out of 5, 1,300 Tripadvisor reviews. Number 1 of 161 Outdoor Activities in Marathon.

Amazing Experience!

Captain Dawn and First Mate Brandon are THE BEST!!! We took the sunset cruise for our son's 12th birthday and let me tell you, what an adventure! We encountered a storm and Captain Dawn remained calm and got us back to shore safe and sound, while still having a great time! We can't wait to take another cruise with Marathon Mermaid!

Amber W.Tripadvisor

Lovely Night in Marathon Key

We loved our sunset cruise. First mate Brandon and Capt Doug showed us all a great time with champagne and stories. The best part, so many dolphins swimming along in front of the boat, everyone got pictures! We look forward to next time when we take their snorkel trip!

Debra B.Tripadvisor

Highly Recommend!

The 2 women who ran the boat were wonderful. They were knowledgeable and informative, engaging with the guests, and entertaining as well! The champagne flowed! There were 14 guests on the sunset cruise which made for friendly conversation. The sunset was spectacular! It was a wonderful way to spend the evening. We will definitely use Marathon Mermaid in the future!!

gigi43Tripadvisor
An aerial view of the Morada Mermaid catamaran over turquoise water with guests on floating mats and paddleboards Two Mermaids. One Family.

Heading north during your Keys vacation?

Meet Morada Mermaid in Islamorada. Our sister boat runs snorkeling, sandbar days and sunset cruises on an entirely different stretch of the Florida Keys. Spend one day with us in Marathon, then experience Islamorada with the newest member of the Mermaid family.

Explore Morada Mermaid
The Mermaid Double Dip

Book both locations during the same Keys vacation and receive a 15% discount.

Experience Both

Come as our guest. Leave as part of the Mermaid family.

Reserve your day on the water in Marathon, or experience both Mermaids during your Florida Keys vacation.