Captain
Magnus Nilsson

Member since February 2018 Key West, United States
Background
Ride in comfort aboard the largest charter boat at historic charter boat row! Captain Magnus is born to fish and knows the Key West waters like the back of his hand. MEET THE CREW: Captain Magnus is the Owner/Operator of THE ULTRA GRAND SLAM FIVE (((5))) STAR SPORT FISHING CHARTERS! Known as 'The Key West Fishing Viking' Capt. Magnus catches the Big Ones running out of the World Famous Charter Boat Row. THE ULTRA GRAND SLAM is a Fully Equipped, Deep Sea, Sports Fishing Cruiser and, is one of the few with Air Conditioning!!! His First Mate, Ross has been making it happen for over 20 years and has caught 3,600 Billfish to date!!! Together with Captain Magnus, they are the hardest working crew in Key West. Be there when they make it #3,601!!!
Techniques
This is your day!!! What kind of fishing are you looking to do? Ask the Captain A Question; Call **hidden content**

Hey, I'm Captain Magnus Nilsson

Key West, United States
Background
Ride in comfort aboard the largest charter boat at historic charter boat row! Captain Magnus is born to fish and knows the Key West waters like the back of his hand. MEET THE CREW: Captain Magnus is the Owner/Operator of THE ULTRA GRAND SLAM FIVE (((5))) STAR SPORT FISHING CHARTERS! Known as 'The Key West Fishing Viking' Capt. Magnus catches the Big Ones running out of the World Famous Charter Boat Row. THE ULTRA GRAND SLAM is a Fully Equipped, Deep Sea, Sports Fishing Cruiser and, is one of the few with Air Conditioning!!! His First Mate, Ross has been making it happen for over 20 years and has caught 3,600 Billfish to date!!! Together with Captain Magnus, they are the hardest working crew in Key West. Be there when they make it #3,601!!!
Techniques
This is your day!!! What kind of fishing are you looking to do? Ask the Captain A Question; Call **hidden content**
37
Reviews
2
Fishing Reports
Verified

My Charter Listing

Ultra Grand Slam Sport Fishing

Federally permitted
Excellent
4.6 / 5
(37 reviews)
Key West
 Instant Confirmation
Trips from US $950

Customer reviews

Rating summary
Excellent
4.6 / 5
out of 5 stars from 37 reviews
See details
Boat
Excellent
4.4 / 5
Crew
Excellent
4.8 / 5
Experience
Excellent
4.7 / 5
Photos & videos by reviewers (31)
Excellent Experience
Better late than never!
Better late than never!
+28
Angler rating
27
4
1
0
1
Anglers claimed
Good experience
92%
Friendly captain
100%
Recommend this charter
81%
Appropriate for children
100%
Satisfied with the boat
100%
Caught fish
79%
Sort by:
Featured  
Showing:
5 of 37 reviews
Patrick C.
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Excellent Experience

VERIFIED   NEW  Half Day Deep Sea Sportfishing on March 20, 2026
Unbelievable experience. The guys worked hard to catch great fish.ย  Snagged barracuda and king fish.ย  Took fillets downtown...
Patrick C. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
You found this review helpful
Patrick C. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
You found this review helpful
Read more
Aaron P.
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Great crew!

VERIFIED   3/4 Day โ€“ Deep Sea Sportfishing on February 21, 2026
We had a great trip. Amazing crew.
Aaron P. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
You found this review helpful
  Magnus Nilsson Captain replied
Read more
Chris B.

The captain canceled

VERIFIED   December 30, 2025
The charter operator canceled 1 days prior to the trip date. This is an automated posting.
Mark review as helpful
You found this review helpful
Mark review as helpful
You found this review helpful
Michael M.
Boynton Beach, FL
Excellent
5.0 / 5
Experience:
Excellent
5.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Full day trip

VERIFIED   Full Day โ€“ 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...
Michael M. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
You found this review helpful
  Magnus Nilsson Captain replied
Read more
Jody B.
Zephyrhills, FL
Excellent
4.3 / 5
Experience:
Good
3.0 / 5
Boat
Excellent
5.0 / 5
Crew
Excellent
5.0 / 5
Overall

Capitan Magnus and Alan

VERIFIED   3/4 Day โ€“ Deep Sea Sportfishing on August 3, 2021
Both were fantastic!! The fish werenโ€™t biting, but thatโ€™s not their fault. The air conditioner didnโ€™t work, but we survived....
Jody B. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
1 person finds this review helpful
You and 1 other person found this review helpful
Jody B. recommends Ultra Grand Slam Sport Fishing
Mark review as helpful
1 person finds this review helpful
You and 1 other person found this review helpful
Read more
  • Settings