Complete your open-water course skills in Marathon
2 half-day charters
Finish the open-water portion of a course you started elsewhere. Put your pool and classroom training to the test in open water.
No refunds within 2 weeks of your scheduled trip or lesson.
Product ID: FKQF65
Yes. Each student must complete a medical/student waiver for the Open Water Checkout Dives before the trip.
Bring towels, reef-safe sunscreen, reusable drinking bottles, and any personal gear you want to use. If you are a certified diver, bring your certification card and Divers Alert Network (DAN) card.
Water is available onboard, and you can use the onboard cooler for personal snacks and drinks.
Miss Jackie, next to The Marketplace at Isla Bella Beach Resort
The staff at Tilden’s was very knowledgeable in helping us select new bands for our spearguns. They took the time to put the bands on for us and provided some valuable insight into fishing the local waters. They were a great help!
Jimmy and Tracy Harris
July 7, 2026
The staff at Tilden’s was very knowledgeable in helping us select new bands for our spearguns. They took the time to put the bands on for us and provided some valuable insight into fishing the local waters. They were a great help!
Jimmy and Tracy Harris
July 7, 2026
Explore Florida Keys reefs by snorkel, Snuba, or certified dive
Explore a shallow reef after dusk and take in the sunset on the ride back
Build advanced scuba skills through core dives and specialty electives
Learn legal spearfishing skills and earn an Underwater Hunter certification
Build scuba skills through pool training and boat dives
Try scuba with pool training and an instructor-led reef dive