Up to $250 for Dining April-June
Up to $250 for Dining April - June

Enjoy a $50/nt dining credit, select dates. Call 877-741-7839. Learn More

Our Biggest Sale of the Year!
Biggest Sale of the Year!

Enjoy rates from $199/Nt on select dates. Call 855-666-6259. Book Now

Win a Trip to Tranquility Bay!

Enter to win a 3-night stay by registering for our email news. Enter to Win

Last Minute Spring Break Escapes
Last Minute Availability

Top tips for family fun in the Florida Keys. Call 877-741-7839. Learn More

Early Bird Sale!
Early Bird Sale!

Book in advance and save more! Call 877-741-7839 Learn More

April - June Romance Escapes
April - June Romance Escapes

Save more mid-April through early June. Call 877-741-7839. View Rates

Stay 5 Nights and Save More
Stay 5 Nights and Save More!

Stay longer and save at Tranquility Bay! Call 888-976-5006 Book Now

View Our Online Planning Guide

See which month is best for your visit! Call 855-417-5782 Browse Now

Explore and Adventure with Our Florida Keys Activities

Great Fishing, Diving, and Water Sports in the Heart of the Keys

Featuring glorious weather year round and endless activities such as Florida Keys fishing, Marathon is an exciting destination for family vacations, romantic getaways, and adventure tourism. With its exceptional setting, comprehensive facilities and knowledgeable staff, Tranquility Bay is the ideal choice for those who wish to experience all the Florida Keys have to offer, especially for those looking to the explore the awaiting adventures in our surrounding Florida Gulf waters.

View all activities here

Adventure Fishing in the Florida Keys

With its unique island location, Marathon anglers enjoy spectacular fishing in the Florida Keys 12 months a year. The Gulf of Mexico abounds with snapper and grouper while backcountry flats teem with bonefish, tarpon and permit. Oceanside is an outer reef that is a magnet for a wide variety of fish species. Some of the world's best sport fishing waits just outside the reef, where you'll find dolphin, tuna, marlin and sailfish. The Adventure Fishing Director at our resort would be pleased to help you plan the perfect Marathon fishing trip. Bring the chef at Butterfly Café your catch and he will expertly prepare it to your exact specifications for a memorable dinner. 

Read more about Adventure Fishing.

Adventure Diving & Snorkeling

Colorful tropical fish, beautiful corals, moray eels and more are waiting to be discovered beneath the Florida Keys' pristine waters. Turtle Island Adventures can recommend the best sites for snorkeling and Marathon diving, based on interests and level of ability. Sombrero Reef, Coffins Patch and Delta Shoal are popular sites that are easily reached from the resort. Certified divers also may visit Thunderbolt, Marathon's most celebrated wreck, as well as other dive sites, including The American, Adelaide Baker and East Washerwoman Shoal. 

Read more about Florida Keys Scuba Diving & Snorkeling.

Adventure Watersports

Spending time on the water is the best way to enjoy our island paradise. Our Adventure Concierge can help coordinate myriad activities, from kayaking, Florida Keys fishing charters and leisurely cruises to Hobie Cat or Waverunner rentals. For a bird's eye view of Marathon and its surrounding waters, consider parasailing. And for the truly adventurous, ride the waves with our two day kiteboarding course! 

Read more about Adventure Watersports.

Turtle Island Adventures' Keys Kids Adventure Camp

Kids ages 5-15 years old can enjoy a variety of water fun! The morning adventure is from 9:00 am - 12:00 pm and the afternoon adventure is from 1:00 pm - 4:00 pm. It costs $89.00 per child plus 7.5% tax and a service charge of 20%.

Ages 5 - 7 Years Old: Learn how to scuba dive with our "SASY" (supplied air snorkeling for youth) equipment. SASY - it's fun, it's safe, and it's easy! Let your kid(s) experience the underwater world the easy way. This specialized equipment allows kids to experience breathing from real scuba equipment, while limiting them to the surface.

Ages 8-9 Years Old: Using fully submergible scuba equipment, let your children learn the basics of scuba diving in the pool portion of our "Dive-in-one-Day" scuba adventure. Practicing in only six feet of water, this is a safe way to master some of the basic skills required of all certified divers.

10 Years and Older: Follow the Keys Kids Adventure Camp "Dive-in-one-Day" pool session with two dives in North America's only living reef with the same instructor from the Keys Kids Adventure Camp for an additional charge. This fun experience even counts towards full open waters scuba certification!

Ages 5 - 15 Years Old: This program teaches kids the safe way to snorkel. After the adventure, schedule a snorkel trip with the whole family in North America's only living reef! 

Read more about Keys Kids Adventure Camp

All Florida Keys activities are weather permitting and reservations are required at (305) 743-2421.