Ultra Grand Slam Sport Fishing 

4.6/5 (34 reviews)
 
Federally permitted
 North Roosevelt Boulevard, Key West, FL 33040, United States

Ultra Grand Slam Sport Fishing 

 
Federally permitted
4.6/5 (34 reviews)
map-thumbnail
North Roosevelt Boulevard
Key West, FL, United States
You may qualify for a Loyalty Program discount with Ultra Grand Slam Sport Fishing. To check if you can use a Loyalty Program discount for your selected dates, please sign in.

Ride in comfort aboard one of the largest charter boats at charter boat row!

Ultra Grand Slam Sport Fishing Charters and Captain Magnus Nilsson invite you down to Key West for an adventure of a lifetime. The company specializes in inshore, offshore, wrecks, and reef fishing trips that are great for seasoned enthusiasts and record-seekers alike.

Captain Magnus loves catching fish and having a great time on the water. The first mate will cater to your every need. We customize our trips to maximize your pleasure.

Whether you want to watch your friend reeling in the biggest catch in their life or you wish to test your angling skills and make a great catch possible, there is a trip for you. You will be able to enjoy the view, spot any action going on beneath the surface, and take in all the beauty of the surrounding waters from a flybridge.

Your day out will take you fishing for anything from Mutton Snapper and Kingfish to Black Grouper, Barracuda, Amberjack, Sharks, and Marlin. You will be trolling and live bait fishing for all big game species. Even if the weather doesn’t cooperate, Capt. Magnus and his crew will take you to the sheltered waters, where you will be able to try your hand at Jacks, Shark, and Barracuda.

The ‘Ultra Grand Slam’ is a Concord AMF Brunswick with 47’ of excellence. She has been uphauled in 2018 and comes powered by a pair of 450 HP Cummins engines. The Ultra Grand Slam is rigged with latest electronics, technologies, and professional accessories.

All trips come with the use of high-quality Penn International and Shimano tackle, as well as lures. Live bait will be caught on the trip.

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Customer reviews

Rating summary

4.6/5
out of 5 stars from 34 reviews
Boat
4.4/5
Crew
4.8/5
Experience
4.7/5

Photos & videos by reviewers (30)

Better late than never!
Better late than never!
Better late than never!
+27

Angler rating

25
4
1
0
1

Anglers claimed

Good experience

92%

Appropriate for children

100%

Friendly captain

100%

Satisfied with the boat

100%

Recommend this charter

82%

Caught fish

78%

Showing 1 - 5 of 34 reviews
Showing: 5 of 34 reviews
Michael M.
Michael M.

Boynton Beach, FL

5.0/5

Aug 10, 2022

Full Day – Deep Sea Sportfishing

Full day trip

VERIFIED

We had a great time and caught a lot of Dolphin. The captain and first mate were awsome . If you want the best boat and crew this is it no need to look any further.

We had a great time and caught a lot of Dolphin. The captain and first mate were awsome . If you want the best boat and crew...  

Review media 0
Captain replied
 Michael M. recommends Ultra Grand Slam Sport Fishing
 Michael M. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on August 17, 2022
Thank you Michael, it was indeed great fishing with you guys

Jody B.
Jody B.

Zephyrhills, FL

4.3/5

Aug 3, 2021

3/4 Day – Deep Sea Sportfishing

Capitan Magnus and Alan

VERIFIED

Both were fantastic!! The fish weren’t biting, but that’s not their fault. The air conditioner didn’t work, but we survived. The boat was clean and water was provided. The only thing we wish is that we could have been a little more involved in the fishing. At times, it felt like we were watching our dinner being caught instead of catching it. Alan was very fun and Captain Magnus was informative on the ride back pointing out local points of interest and just being generally cordial. All in all, great trip and definitely recommend!

Both were fantastic!! The fish weren’t biting, but that’s not their fault. The air conditioner didn’t work, but we survived. The...  

 Jody B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful
 Jody B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful

Rodney J.
Rodney J.

Oshkosh, WI

5.0/5

Jan 15, 2023

3/4 Day – Deep Sea Sportfishing

Great crew

VERIFIED

Awesome time

Awesome time  

Review media 0
Review media 1
Review media 2
Captain replied
 Rodney J. recommends Ultra Grand Slam Sport Fishing
 Rodney J. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on January 17, 2023
Thank you Rodney, it was great fishing with you guys, hope to see you again
Review media 0
Review media 1

Todd B.
Todd B.

Loudon, Tennessee

5.0/5

Jun 23, 2021

Half Day Deep Sea Sportfishing

Half day trip with Capt Magnus and Travis

VERIFIED

Awesome time. Capt. Magnus was great, and Travis worked hard the entire trip. Travis kept us laughing, and Capt Magnus piloted the ship right where the fish were. Couldn't ask for a better time. I would definitely book again, however call them direct, as using Fishingbooker.com can create problems.

Awesome time. Capt. Magnus was great, and Travis worked hard the entire trip. Travis kept us laughing, and Capt Magnus piloted...  

Review media 0
 Todd B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful
 Todd B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful

Don O.
Don O.

Tampa, Florida

5.0/5

Jan 13, 2019

3/4 Day – Deep Sea Sportfishing

Fishing with Capt Craig - Great Fun

VERIFIED

We had a wonderful time on our 6 hour trip on the Ultra Grand Slam Sport Fishing Boat! From the moment we arrived at the dock we were taken care of by Ross and Capt Craig. Everything was made easy for us, and anything we needed was provided. Captain Craig pointed out interesting sites while we were on our way out of the dock area and explained what where we were going and unique things about fishing in the Keys. We caught our limit of King Mackerel and some great Black Fin Tuna - and had our fish for dinner that night! I have chartered fishing boats up and down the east coast as well in Key West and this was by far the best experience we have had. Booking with Captain Craig is the easy button for a good time! Thanks again Captain Craig and Ross Baker!

We had a wonderful time on our 6 hour trip on the Ultra Grand Slam Sport Fishing Boat! From the moment we arrived at the dock...  

Captain replied
 Don O. recommends Ultra Grand Slam Sport Fishing
 Don O. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on January 14, 2019
Thanks Don, it was our pleasure to host you and your Family on your fishing trip !

Trip availability and prices

Trip Date:
Days:
Group Size:
Select date to see availability
October 2025
SuMoTuWeThFrSa
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Number of days
1
Group Size
2 adults • 0 children
Change
Almost there...
Half Day Deep Sea Sportfishing
FREE Cancellation 3 days notice
4 Hour Trip, starts at 8:00 AM
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US $950 
Entire boat: up to 6 people
3/4 Day – Deep Sea Sportfishing
FREE Cancellation 3 days notice
6 Hour Trip, starts at 8:00 AM
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US $1,200 
Entire boat: up to 6 people
Full Day – Deep Sea Sportfishing
FREE Cancellation 3 days notice
8 Hour Trip, starts at 8:00 AM
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US $1,500 
Entire boat: up to 6 people

Customer reviews

Rating summary

4.6/5
out of 5 stars from 34 reviews
Boat
4.4/5
Crew
4.8/5
Experience
4.7/5

Photos & videos by reviewers (30)

Better late than never!
Better late than never!
Better late than never!
+27

Angler rating

25
4
1
0
1

Anglers claimed

Good experience

92%

Appropriate for children

100%

Friendly captain

100%

Satisfied with the boat

100%

Recommend this charter

82%

Caught fish

78%

Showing 1 - 5 of 34 reviews
Showing: 5 of 34 reviews
Michael M.
Michael M.

Boynton Beach, FL

5.0/5

Experience:

5.0/5

Boat

5.0/5

Crew

5.0/5

Overall

Full day trip

VERIFIED

Full Day – Deep Sea Sportfishing on August 10, 2022

We had a great time and caught a lot of Dolphin. The captain and first mate were awsome . If you want the best boat and crew this is it no need to look any further.

We had a great time and caught a lot of Dolphin. The captain and first mate were awsome . If you want the best boat and crew this is it no need to look any further.  

Review media 0
 Michael M. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on August 17, 2022
Thank you Michael, it was indeed great fishing with you guys

Jody B.
Jody B.

Zephyrhills, FL

4.3/5

Experience:

3.0/5

Boat

5.0/5

Crew

5.0/5

Overall

Capitan Magnus and Alan

VERIFIED

3/4 Day – Deep Sea Sportfishing on August 3, 2021

Both were fantastic!! The fish weren’t biting, but that’s not their fault. The air conditioner didn’t work, but we survived. The boat was clean and water was provided. The only thing we wish is that we could have been a little more involved in the fishing. At times, it felt like we were watching our dinner being caught instead of catching it. Alan was very fun and Captain Magnus was informative on the ride back pointing out local points of interest and just being generally cordial. All in all, great trip and definitely recommend!

Both were fantastic!! The fish weren’t biting, but that’s not their fault. The air conditioner didn’t work, but we survived. The boat was clean and water was provided. The only thing we wish is that we could have been a little more involved in the fishing. At times, it felt like we were watching our dinner being caught instead of catching it. Alan was very fun and Captain Magnus was informative on the ride back pointing out local points of interest and just being generally cordial. All in all,...  

 Jody B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful

Rodney J.
Rodney J.

Oshkosh, WI

5.0/5

Experience:

5.0/5

Boat

5.0/5

Crew

5.0/5

Overall

Great crew

VERIFIED

3/4 Day – Deep Sea Sportfishing on January 15, 2023

Awesome time

Awesome time  

Review media 0
Review media 1
Review media 2
 Rodney J. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on January 17, 2023
Thank you Rodney, it was great fishing with you guys, hope to see you again
Review media 0
Review media 1

Todd B.
Todd B.

Loudon, Tennessee

5.0/5

Experience:

5.0/5

Boat

5.0/5

Crew

5.0/5

Overall

Half day trip with Capt Magnus and Travis

VERIFIED

Half Day Deep Sea Sportfishing on June 23, 2021

Awesome time. Capt. Magnus was great, and Travis worked hard the entire trip. Travis kept us laughing, and Capt Magnus piloted the ship right where the fish were. Couldn't ask for a better time. I would definitely book again, however call them direct, as using Fishingbooker.com can create problems.

Awesome time. Capt. Magnus was great, and Travis worked hard the entire trip. Travis kept us laughing, and Capt Magnus piloted the ship right where the fish were. Couldn't ask for a better time. I would definitely book again, however call them direct, as using Fishingbooker.com can create problems.  

Review media 0
 Todd B. recommends Ultra Grand Slam Sport Fishing
1 person finds this review helpful

Don O.
Don O.

Tampa, Florida

5.0/5

Experience:

5.0/5

Boat

5.0/5

Crew

5.0/5

Overall

Fishing with Capt Craig - Great Fun

VERIFIED

3/4 Day – Deep Sea Sportfishing on January 13, 2019

We had a wonderful time on our 6 hour trip on the Ultra Grand Slam Sport Fishing Boat! From the moment we arrived at the dock we were taken care of by Ross and Capt Craig. Everything was made easy for us, and anything we needed was provided. Captain Craig pointed out interesting sites while we were on our way out of the dock area and explained what where we were going and unique things about fishing in the Keys. We caught our limit of King Mackerel and some great Black Fin Tuna - and had our fish for dinner that night! I have chartered fishing boats up and down the east coast as well in Key West and this was by far the best experience we have had. Booking with Captain Craig is the easy button for a good time! Thanks again Captain Craig and Ross Baker!

We had a wonderful time on our 6 hour trip on the Ultra Grand Slam Sport Fishing Boat! From the moment we arrived at the dock we were taken care of by Ross and Capt Craig. Everything was made easy for us, and anything we needed was provided. Captain Craig pointed out interesting sites while we were on our way out of the dock area and explained what where we were going and unique things about fishing in the Keys. We caught our limit of King Mackerel and some great Black Fin Tuna - and had...  

 Don O. recommends Ultra Grand Slam Sport Fishing
undefined (The Captain)
Replied on January 14, 2019
Thanks Don, it was our pleasure to host you and your Family on your fishing trip !

FAQs about Ultra Grand Slam Sport Fishing

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The fish you can target

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What is the boat like?

Boat Image
Boat category
Sportfishing boats
Capacity
6 persons
Boat length
48 ft
Year built
1977
Restored in
2018
Boat manufacturer
Concord AMF Brunswick
Boat type
Sportfishing

Engine model
Cummins
Powered by
2 x 450HP
Max cruising speed
22 knots
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What’s biting in Key West right now

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