IMC
I was on a hell of a god trip some years ago (4/5) now. We caught sail fish and Big Eye Tuna . he takes 6 persons max About €100 each. That includes beer, soft drinks, fruit and lunch.
It is a fair set up. You spend the time trawling with 7 rods. 1 per person and one for Marlin. Before setting off each rod is numbered and each person draws a number from a hat and pairs with the rod of same number. When your rod screems you are put into the chair. Every person gets a turn if you catch a sail fish.
To the best of knowledge the boat was called sail fish. It's and american man and his son run it. But they know their stuff and the boat is amazing. My advise is book the trip as early as possible with one of the wee agent people that do all the trips- preferrably the 1st day.
On the other side i booked a shark trip in portugal. What a waste of time

and £££. Be careful. If you can source that boat and skipper i would recommend it 100%.
Hope this helps.