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Best results for

Water Activities in Duck Key, FL

Showing 25-48 of 349 results
Private Snorkeling Charter in Islamorada

Private Snorkeling Charter in Islamorada

Choose a private bayside or reef snorkel with a US Coast Guard-licensed captain

5.0 • 110 reviews
$530
4-Hour Private Tour in Islamorada

4-Hour Private Tour in Islamorada

Customize a private outing with beer, wine, and assorted snacks

5.0 • 100 reviews
$681& up
Marathon Sandbar Cruise

Marathon Sandbar Cruise

Cruise Marathon’s waters, then float and paddle at a local sandbar

5.0 • 3.9K reviews
$102/ person
Coral Reef Snorkel Tour in Islamorada

Coral Reef Snorkel Tour in Islamorada

Discover the Florida Keys below the surface with snorkeling gear provided

4.9 • 987 reviews
$85/ person
Paddle a Clear Tandem Kayak Mangrove Tour

Paddle a Clear Tandem Kayak Mangrove Tour

Paddle a clear tandem kayak through mangrove tunnels on a 1.5-hour morning cruise

4.9 • 391 reviews
$91/ person
Catamaran Sandbar Tour in Marathon, Florida Keys

Catamaran Sandbar Tour in Marathon, Florida Keys

Swim, float, and relax at a local Florida Keys sandbar aboard a spacious catamaran

4.9 • 218 reviews
$113/ person
Islamorada 3-Hour Sightseeing Cruise

Islamorada 3-Hour Sightseeing Cruise

Customize a private bayside cruise around mangroves, estates, waterfront bars, or sunset

5.0 • 604 reviews
$625
Guided Alligator Reef Snorkel Tour

Guided Alligator Reef Snorkel Tour

Explore Alligator Reef’s coral gardens on a guided snorkel trip

4.9 • 181 reviews
$77/ person
Explore the Underwater World on a 2-Hour Glass Bottom Boat

Explore the Underwater World on a 2-Hour Glass Bottom Boat

See marine life and reefs from a 46-foot glass bottom boat

4.9 • 175 reviews
$85/ person
Lobster Diving Charter In Tavernier

Lobster Diving Charter In Tavernier

Private lobster diving charter with an in-water guide

5.0 • 181 reviews
$1,378& up
Marathon Reef & Wreck Fishing Charter

Marathon Reef & Wreck Fishing Charter

Fish calmer nearshore reefs, with wreck fishing possible when conditions allow

5.0 • 150 reviews
$901
Guided Spearfishing Charter in Islamorada

Guided Spearfishing Charter in Islamorada

Learn to spear fish with in-water guidance and dockside catch cleaning

5.0 • 131 reviews
$1,747& up
Marathon Catch-and-Release Shark Fishing Charter

Marathon Catch-and-Release Shark Fishing Charter

Fish Florida Bay’s shallow waters and release sharks unharmed

4.9 • 105 reviews
$954& up
3-Hour Boat Tour in Islamorada

3-Hour Boat Tour in Islamorada

Share a flexible island boat outing shaped around snorkeling, sandbars, and wildlife spotting

5.0 • 100 reviews
$511& up
Marathon Snorkel & Sandbar Cruise

Marathon Snorkel & Sandbar Cruise

Pair reef snorkeling with sandbar swimming, paddling, and a Seven Mile Bridge cruise

5.0 • 3.9K reviews
$136/ person
Family-Friendly Islamorada Sandbar Boat Tour

Family-Friendly Islamorada Sandbar Boat Tour

Trade the shore for shallow turquoise water and a laid-back sandbar escape

4.9 • 987 reviews
$90/ person
Sunset Kayak Tour in Islamorada

Sunset Kayak Tour in Islamorada

Paddle clear tandem kayaks through mangroves to a sunset cove

4.9 • 391 reviews
$92/ person
Sand Dollar Swim Cruise in Marathon

Sand Dollar Swim Cruise in Marathon

Start the day with a family-friendly Florida Keys morning on the water

4.9 • 218 reviews
$107/ person
Islamorada Sandbar Boat Charter

Islamorada Sandbar Boat Charter

Cruise to a shallow-water sandbar with a captain, paddleboard, floats, and lunch

5.0 • 604 reviews
$636
Islamorada Reef Snorkeling & Sandbar Boat Trip

Islamorada Reef Snorkeling & Sandbar Boat Trip

Explore a reef, then unwind in the shallow waters of Islamorada Sandbar

4.9 • 181 reviews
$128/ person
Islamorada 2.5-Hour Glass Bottom Boat Night Cruise

Islamorada 2.5-Hour Glass Bottom Boat Night Cruise

See coral reefs and marine life through a 46-foot boat's glass viewing area

4.9 • 175 reviews
$85/ person
Snorkeling Charter in Islamorada

Snorkeling Charter in Islamorada

Private Islamorada snorkeling charter with gear available

5.0 • 181 reviews
$1,272& up
Islamorada Snorkeling Charter

Islamorada Snorkeling Charter

Discover marine life at Islamorada reefs and backwater snorkel sites

4.9 • 51 reviews
$318& up
Looe Key Snorkel & Picnic Island Trip from Big Pine Key

Looe Key Snorkel & Picnic Island Trip from Big Pine Key

Snorkel Looe Key’s protected reef with an optional Picnic Island beach stop

5.0 • 25 reviews
$529
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Duck Key Things To Do
Fishing Charters129Boat Rentals69Boat Tours41Snorkeling38Scuba Diving26
More
  • Kayaking Tours14
  • Car Rentals13
  • Sunrise and Sunset Tours13
  • Private Fishing Charters6
  • Canoeing5
  • Food Tours5
  • Jet Skiing5
Yacht Charters
5
  • Paddleboarding4
  • Travel guides for Water Activities

    13 Stunning Beaches in Florida With Clear Water You Need to Visit
    Best of Florida • 2026

    13 Stunning Beaches in Florida With Clear Water You Need to Visit

    Clarity is geology, not luck: quartz sand, seagrass filtration, and how close the Gulf Stream runs. Thirteen beaches, and the trade-off each one asks of you.

    Do You Need a License to Rent a Boat in Florida? Your Complete Guide
    Best of Florida • 2026

    Do You Need a License to Rent a Boat in Florida? Your Complete Guide

    Florida issues no boating license at all. What the marina checks is a safety education card, and whether you need one comes down to one date: January 1, 1988.