"Fishing-Trip" I was in last autumn did cost about 400$ from one weekend:
Ship to island and back to continent 80$
Cabin in island and boat 50$
Equipments 80$
Food, "anti-freeze liquids" (for internal use), Tax-free shop in ship etc. 200$
Joke which is hard to translate to english:
(Octopus has tentacles and tentacle is also nickname for Finnish long-drink which contains grape-juice and Gin, ie "Lonkero")
We went out to the sea in evening but somehow my friends did manage to tumble their boat next to pier and all equipments fall in to the sea. Next morning we went to the pier and friend looked to the sea and yelled us: "Guys come look at this; Here's an Octopus in the sea !"
We thought WTF and runned to the pier and what we saw in the bottom of the sea was dozen "Tentacles"