Experience a diverse range of fishing in Marathon, Florida with “Infinite Blue Charters”! You’ll troll for pelagic fish, drift fish over the wrecks, and bottom fish for delicious Snapper and Grouper with Captain Robert Williams. He’s been angling for nearly 4 decades and loves to show both novices and pros a great time on the water.

Hop aboard his 47’ Sea Ray flybridge, ideal for 6 anglers who all want to fish at the same time. This luxurious beauty is equipped with everything you need for a successful day. Cast your rods from the large fishing platform, hang-out on the deck, and take in the views from the flybridge. Step inside the cabin and you’ll find a couch, a TV, kitchen, AC, and a head.

Head offshore and you’ll troll for your share of Mahi Mahi, Wahoo, and Tuna! After you’ve your fix, head over to the productive reefs and wrecks to drift fish for Amberjack and King Mackerel. You definitely don’t want to miss out on the fantastic bottom fishing in these waters either. With tons of Snapper and Grouper to hook, you’ll go home with full coolers!

Top-notch fishing gear, as well as live bait, awaits on board to get you on top of your targets. Capt. Robert also brings along snorkeling gear for a fun, family-friendly activity. If you’re the adventurous type and certified to dive, he can also provide tanks and weights for a wonderful day of exploring the wrecks and reefs.

Bring along any drinks and snacks you’d like to enjoy and if there are more than 4 of you fishing, make sure to purchase extra fishing licenses. At the end of the trip, Capt. Robert or his first mate are happy to clean and fillet your catch for easy transport home. The crew works hard to make sure you have a good time and if you’re happy with the service a 20% tip is customary.

Enjoy an unforgettable day on the water with an experienced crew aboard Infinite Blue Charters!



Select date to see available trips and rates:

  • Private trip
    Marathon Hump Trip
    FREE Cancellation 7 days notice
    8 Hour Trip, starts at 7:30 AM
    $1,550
    Tuna time at the Humps! An 8 hour trip to a popular spot, the Marathon Humps. You'll depart the dock at 7:30 AM, run to 400 feet of water, set the lines out for Mahi on our way to the Humps. Fishing time on the Humps ranges from 2.5 -3 hours of trolling for Tuna. This trip is highly dependent on the weather. Please note that a customary 20% tip for the mates is not included in the price, so do not forget to thank them for their service.
  • Private trip
    6 Hour Trip – Bottom Fish/Trolling
    In demand! Last booked: 5 days ago
    FREE Cancellation 7 days notice
    6 Hour Trip, starts at 8:30 AM
    $1,250
    Head offshore and set the rods out to troll to target pelagic such as Mahi-Mahi, Tuna, and Wahoo. Our goal is to catch a trophy fish while creating a memory of a lifetime. (Seasons will determine your catch). Gear, bait, bottled water and fishing licenses up to 4 anglers await on board. Please note that a customary 20% tip for the mates is not included in the price, so do not forget to take care of them for their service.
  • Private trip
    4 Hour Trip – Trolling
    FREE Cancellation 7 days notice
    4 Hour Trip, starts at 8:30 AM
    $1,150
    Head offshore and set the trolls out to target pelagic such as Mahi Mahi, Tuna, and Wahoo. Our goal is to catch a trophy fish while creating a memory of a lifetime. Gear, bait, bottled water and fishing licenses up to 4 anglers await on board. Please note that a customary 20% tip for the mates is not included in the price, so do not forget to take care of them for their service.
  • Private trip
    5 Hour Trip–Holiday Special Bottom
    In demand! Last booked: 6 days ago
    FREE Cancellation 7 days notice
    5 Hour Trip, starts at 8:00 AM
    Seasonal trip Dec 1 - Dec 31
    $995
    Infinite Blue Charters would love to share the holiday on the water fishing with you and your family. Spend 5 Hours bottom fishing for Grouper, Yellowtail Snapper, Mutton Snapper, Cobia, and Kingfish on the luxurious 50' Sea Ray. You will be fishing in depths from 40 to 200 feet. The gear, bait, bottled water, and fishing licenses for up to 4 anglers await on board. Please note a customary 20% tip for the mates is not included in the price, so do not forget to thank them for their service.
  • Private trip
    4 Hour Trip – Bottom Fishing
    FREE Cancellation 7 days notice
    4 Hour Trip, starts at 8:30 AM
    $950
    On this trip, you'll target bottom species such as Yellowtail, Mangrove Snapper, Mutton Snapper, and Grouper. You will be fishing on the reefs in water depths from 40 to 100 feet. Gear, bait, bottled water, and fishing licenses for up to 4 anglers await on board. Please note that a customary 20% tip for the mates is not included in the price, so do not forget to thank them for their service.
There are 24 people looking at this charter.

About the Captain

Robert Williams
Marathon, Florida, United States
Angler's Choice
25 Fishing Reports
ID & License verified
105 Customer Reviews
Response time within an hour
Member since January 2020
Captain Robert Williams has been fishing for nearly 4 decades. He's spent the last 10 years fishing in Marathon, Florida, making him a true local connoisseur of these waters. Choosing the path to become a licensed captain was an easy one for Capt. Robert. For him, taking guests out on the water daily is the best work there is!

About this listing

Targeted Species

Dolphin (Mahi Mahi) Dolphin (Mahi Mahi)
Grouper (Red) Red Grouper
King Mackerel (Kingfish) King Mackerel (Kingfish)
Snapper (Lane) Lane Snapper

Snapper (Mangrove) Mangrove Snapper
Snapper (Mutton) Mutton Snapper
Snapper (Yellowtail) Yellowtail Snapper
Tuna (Blackfin) Blackfin Tuna

Boat Specs

Sea Ray (Flybridge) originally built in 1998. Powered by 2 420HP Catapillar engines, with a maximum cruising speed of 25 knots.

Length
47 ft
Capacity
6 persons

Types of Fishing

Offshore Fishing
Reef Fishing
Wreck Fishing

Fishing Techniques

Light Tackle
Heavy Tackle
Bottom Fishing
Trolling
Drift Fishing
Deep Sea Fishing

Amenities

Toilet
Air Conditioning
GPS
Fishfinder
Bed
Flybridge
Snorkeling Equipment
Live Bait Well
Kitchen
Refrigerator
Outriggers
Ice Box
Toilet
Air Conditioning
GPS
Fishfinder
Bed
Flybridge

Trip Includes

Rods, reels & tackle
Live Bait
Lures
Catch cleaning & filleting
Drinks
First Mate
Fishing License

Cancellation Policy

Free cancellation up to 7 days prior to trip

Customers can cancel or modify their booking up to 7 days before the trip date free of charge. If the trip is canceled or modified later, or in the event of a no-show, 100% of the deposit will be charged.

Listing Policies

Pickup not included
Transfer to/from departure site is not included in trip rates.
Child Friendly
No Smoking
You Keep Catch
Catch and Release Allowed

Payment

Pay online in full

Pay online in full through FishingBooker and avoid any additional costs or unnecessary hassle with carrying cash.

No additional fees.
Book with 15% deposit, pay rest to captain

When the captain confirms your trip, FishingBooker charges your credit card a 15% deposit to guarantee your reservation.

The remaining balance is to be paid directly to the charter operator on or prior to your trip date in one of the following payment methods:

Cash
Visa
Mastercard
American Express
When paying the remaining balance with a credit card, an additional 3.5% charge will apply.

Marathon Fishing Calendar

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Recent Fishing Reports

Grouper Day
Grouper Day
December 3, 2021
Fishing 50' and the Groupers were biting!
Grouper Day
Grouper Day
November 23, 2021
30' reef and the Grouper are biting!
Yellow Tails on the reef!
Yellow Tails on the reef!
November 22, 2021
On the reef in 55' the bite was on.

Customer Reviews

Rating Summary
Photos & videos by reviewers (105)
5.0
Excellent Excellent Excellent Excellent Excellent
out of 5 stars from 101 reviews
Boat
Excellent Excellent Excellent Excellent Excellent
Crew
Excellent Excellent Excellent Excellent Excellent
Experience
Excellent Excellent Excellent Excellent Excellent
Half Day with Captain Robert
Half Day with Captain Robert
Half Day with Captain Robert
+102
Angler Rating
98
1
0
0
0
Anglers Claimed
Good experience
100%
Friendly captain
100%
Recommend this charter
98%
Appropriate for children
99%
Satisfied with the boat
100%
Catch intended fish
89%
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Featured  
Showing:
5 of 101 reviews
Suzanne P.
Rochester, MA
Excellent Excellent Excellent Excellent Excellent  5.0
Experience:
Excellent Excellent Excellent Excellent Excellent Boat
Excellent Excellent Excellent Excellent Excellent Crew
Excellent Excellent Excellent Excellent Excellent Overall

Awesome trip!

VERIFIED   NEW  4 Hour Trip – Bottom Fishing on December 2, 2021
Captain Bob and the crew were incredible! Caught lots of fish, all different types. They were very knowledgeable about every...
Suzanne P. recommends Infinite Blue Charters
Mark as helpful
You found this helpful
  Robert Williams Captain replied

Melanie K.
Seabrook Island, SC
Excellent Excellent Excellent Excellent Excellent  5.0
Experience:
Excellent Excellent Excellent Excellent Excellent Boat
Excellent Excellent Excellent Excellent Excellent Crew
Excellent Excellent Excellent Excellent Excellent Overall

Awesome day!

VERIFIED   October Special - Half Day Fishing on August 9, 2021
Our family of 4 had the best time with Captain Robert and Leslie today! What a beautiful boat and they were really knowledgeable...
Melanie K. recommends Infinite Blue Charters
Mark as helpful
You found this helpful
  Robert Williams Captain replied

Alena D.
United States
Excellent Excellent Excellent Excellent Excellent  5.0
Experience:
Excellent Excellent Excellent Excellent Excellent Boat
Excellent Excellent Excellent Excellent Excellent Crew
Excellent Excellent Excellent Excellent Excellent Overall

Sunset trip with Captain Robert Williams

VERIFIED   Sunset Fishing Cruise on May 25, 2021
Thanks so much, Robert, for a great experience! 1. It was a beautiful trip. 2. We felt very special and the captain did everything...
Alena D. recommends Infinite Blue Charters
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You found this helpful
  Robert Williams Captain replied

Amadeo S.
Harvey, MI
Excellent Excellent Excellent Excellent Excellent  5.0
Experience:
Excellent Excellent Excellent Excellent Excellent Boat
Excellent Excellent Excellent Excellent Excellent Crew
Excellent Excellent Excellent Excellent Excellent Overall

Action packed experience with Captain Robert and Kay.

VERIFIED   6 Hour Trip on April 19, 2021
My wife booked a fishing trip for me and my father in-law on our recent trip to the keys; wow did she pick the right charter! ...
Amadeo S. recommends Infinite Blue Charters
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You found this helpful
  Robert Williams Captain replied

Thomas S.
Fort Lauderdale, Florida
Excellent Excellent Excellent Excellent Excellent  5.0
Experience:
Excellent Excellent Excellent Excellent Excellent Boat
Excellent Excellent Excellent Excellent Excellent Crew
Excellent Excellent Excellent Excellent Excellent Overall

Great Trip

VERIFIED   4 Hour Trip – Bottom Fishing on March 22, 2021
Captain Robert and First Mate Kay were absolutely fantastic.  We could not have asked for a better crew.  They made the ride...
Thomas S. recommends Infinite Blue Charters
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  Robert Williams Captain replied

FAQs about Infinite Blue Charters

Infinite Blue Charters offers the following trips to customers:
  • $950 per group - 4 Hour Trip – Bottom Fishing (4 hours)
  • $995 per group - 5 Hour Trip–Holiday Special Bottom (5 hours)
  • $1,150 per group - 4 Hour Trip – Trolling (4 hours)
  • $1,250 per group - 6 Hour Trip – Bottom Fish/Trolling (6 hours)
  • $1,550 per group - Marathon Hump Trip (8 hours)

When you book a trip with Infinite Blue Charters, you can expect the following amenities onboard:
  • Toilet
  • Air Conditioning
  • GPS
  • Fishfinder
  • Bed
  • Flybridge
  • Snorkeling Equipment
  • Live Bait Well
  • Kitchen
  • Refrigerator (You may store food for your trip)
  • Outriggers
  • Ice Box

Trips booked with Infinite Blue Charters include:
  • Rods, reels & tackle (Penn, Abu Garcia, Akuma and Shimano)
  • Live Bait (For specific trips and seasons)
  • Lures
  • Catch cleaning & filleting
  • Drinks (Bottled water)
  • First Mate (20% tip is customary)
  • Fishing License (For 4 anglers )

Infinite Blue Charters offers the following types of fishing:
  • Offshore Fishing
  • Reef Fishing
  • Wreck Fishing

Infinite Blue Charters offers the following fishing techniques:
  • Light Tackle
  • Heavy Tackle
  • Bottom Fishing
  • Trolling
  • Drift Fishing
  • Deep Sea Fishing

Top targeted fish species with Infinite Blue Charters include:
  • Dolphin (Mahi Mahi)
  • Grouper (Red)
  • King Mackerel (Kingfish)
  • Snapper (Lane)
  • Snapper (Mangrove)
  • Snapper (Mutton)
  • Snapper (Yellowtail)
  • Tuna (Blackfin)