Bowfished for about 14 years, anything from my kids bow at 40# to my Mathews outback at about 72#'s, in waders, from my duckboat, got sick of it, haven't done it in about 8 years now.
Find a good spot and it gets old, you can shoot as many as you want, then you have to figure out what to do with the thousand pounds of dead fish.
Towards the end I just shot big fish or took difficult shots to test my skills. Now they regulate it, I don't think they did back then... I've always thought it would be neat to try it with a crossbow.
Don't get the crappy reels, not the one that looks like the reel you use on a kids fishing rod, and don't tie your line directly to the arrow shaft, use the arrows with the slider line on them. Get one with a tip that is quick and easy to use to release the fish, get one that is difficult and after 20 fish you'll want to drink the arrow.
Get good glasses, I spent $190 on Costa del mars, I still have these and use them, my buddy was just over to go fishing, he had two different pairs of polarized glasses and neither touched these 13 or so year old Costas.