Best 231 things to do in Marathon, FL

Ride a Jet Ski from Grassy Key Marina in Marathon

Set out to fish from a 20-foot Cape Horn center console

Fish and visit the sandbar aboard a 21-foot center-console

Fish or dive from a 25-foot Proline with a fin-friendly boarding ladder

A shaded center-console boat for flexible time on the water

A family-friendly boat for sandbars, reefs, and fishing

Explore sandbars, snorkeling spots, and fishing areas by boat

Glide across the Florida Keys and explore the marine ecosystem

Enjoy a durable floating water mat for family time on the water

Paddle calm coastal waters and look for local wildlife

Fish backcountry bridges and shallow waters for tarpon, sharks, snook and more

Explore historic grounds, natural trails, and a fish pedicure

Swim, float and relax at a Florida Keys sandbar

Sunset views, seasonal Florida Keys seafood, and a champagne toast from a 52-foot catamaran

Swim shallow Florida Keys waters and search for sand dollars before lunch

Complete your open-water course skills in Marathon

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

Customize a private snorkeling outing with gear, water, and time to relax

Guided shallow-reef snorkeling with gear and float aids included

Snorkel a shallow reef and float at the Islamorada sandbar