Contact Us: 833-I-GO-FISH (446-3474)
Contact Us: 833-I-GO-FISH (446-3474)
Contact Us: 833-I-GO-FISH (446-3474)
Contact Us: 833-I-GO-FISH (446-3474)

Shark River Charters

Capt. Dan Duimstra Marathon, FL Incorporated Licensed Insured

Shark River Charters is your guide to the best fishing spots in the Florida Keys. Based out of Marathon, FL we offer safe, fun, and productive fishing trips serving the South Florida area. Let us take you on a deep sea fishing charter you will never forget!

Captain Dan Duimstra will be leading the way as you cruise the waters of Marathon for your big game catch. Since the early days of childhood, Captain Dan has been a fishing fanatic. Spending most of his adult life in the commercial fishing industry, Dan has fished most of Florida, the Gulf Stream, Florida Keys, the Bahamas, and the Caribbean. His decision to leave the commercial fishing industry and start a guide / charter service was based on a desire to promote the conservation of this resource by sharing his wealth of knowledge and love of fishing with his clients.

Your fishing charter adventure with Capt. Dan will begin in Marathon, and depending on where the fish are biting, you could end up in the fishing grounds of Boot Key, Key Colony Beach, Vaca Key, Duck Key, Layton, Lower Matecumbe Key, Islamorada, and other fishing hotspots of the Florida Keys.

Enjoy fishing from our stable 26ft Parker Pilot House fishing boat which has all up-to-date electrical equipment and a live baitwell. It is spacious and can have up to 4 guests fishing comfortably at the same time.  This boat will get us to all our secret areas and get us there fast.

We offer 4, 6, and 8-hour nearshore and offshore fishing trips. Capt. Dan has a full spectrum of well-maintained rods & reels and all the tackle you will need for a successful fishing trip. If you have a favorite or lucky outfit feel free to bring it. Our tackle ranges from 20lb test to 100lb test. We will challenge even the most serious of fishermen and provide an action-packed day. Some fishing techniques we practice include Bottom Fishing, Deep Sea Fishing, Drift Fishing, Kite Fishing, Light Tackle Fishing, Spinning, and Trolling.

Going about five to six miles offshore you are likely to see many exciting species that call Marathon home including Amberjack, Bonito, King Mackerel, Grouper, Spanish Mackerel, Barracuda, Cobia, Snapper, Sailfish, Grouper, and Sharks.

Shark River Charters and Captain Dan Duimstra invite you to experience the best deep sea fishing in all of the Florida Keys. Book a trip with us today and get ready to have the time of your life!

  Launch Location

54 Seaview Avenue, Marathon

Find the best travel deals at

 (833) 446-3474

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Trips start at $450

3 Trips

1-4 guests

See available trips

2011 26' Pilothouse

  • GPS
  • Fishfinder
  • Children Welcome
  • Clients Keep Catch
  • No Illegal Substances



Select an Available Trip



Includes 4 guests

Trip time: 7:30am to 11:30am (4 hours)

3 Day Cancellation Policy

We'll bottom fish the reefs of the Florida Keys for Mangrove Snapper, Mutton Snapper, Red Grouper, and Black Grouper. The starting time of this trip is flexible.

Close details



Includes 4 guests

Trip time: 7:00am to 1:00pm (6 hours)

3 Day Cancellation Policy

This trip gives you more time to fish the offshore reefs for Spanish Mackerel, Red Grouper, Sharks, and more.

Close details



Includes 4 guests

Trip time: 7:30am to 3:30pm (8 hours)

3 Day Cancellation Policy

This trip is action packed! Sailfish, Cobia, and Sharks are some of the species we'll target as well as  Mutton Snapper, Mangrove Snapper, and Red Grouper.

Rod and Reel, Tackle and Bait
Close details

Fish Species

Black Grouper
King Mackerel
Mangrove Snapper
Mutton Snapper
Red Grouper
Spanish Mackerel

Additional Details

Safety Features

  • Life Jackets
  • Fire Extinguishers
  • First-Aid Equipment
  • CPR-Trained Crew
  • Flares
  • VHF Radio


  • GPS
  • Fishfinder

Boat Features

  • Cooler

Boat Gear

  • First Mate
  • Livewell

Fishing Techniques

  • Bottom Fishing
  • Deep Sea Fishing
  • Drift Fishing
  • Kite Fishing
  • Light Tackle
  • Spinning

Fishing Policies

  • Children Welcome
  • Clients Keep Catch
  • No Illegal Substances

Price Includes

  • Catch Cleaning & Filleting
  • Fishing License
  • Fresh or Live Bait
  • Lures
  • Rods, Reels & Terminal Tackle

Minimum Age

  • All Ages Welcome

Fishing Location

  • Backcountry
  • Inshore
  • Nearshore
  • Offshore
  • Reef
  • Wreck

About the Vessel


Capt. Dan Duimstra

Boat Type


Boat Length


Year Built


Engine Manufacturer

Yahama 250

Number of Engines


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