Went to Branch Brook campground in Campton NH last year. The sites were nice they had everything from wooded sites to river front sites. The campground buts up against the Pemigewasset River. We had alot of fun tubing down the river (though it gets a little shallow in spots but mabey not the case this year lol) you could get dropped off or walk to a drop in spot for a shorter ride back to the beach. They have a pond that I'm sure contains some bluegill, punkins and bass or you can fish in the river. I asked one of the workers about a good spot to fish. He sent me across the bridge where you enter the campground and told me that's one of the places they stock the river. He wasn't kidding I fished for a few hours and ended up with 3 nice rainbows and a brookie. While fishing you could see the fish hitting the top of the water. Needless to say I never tried the pond LOL. So good fishing, nice sites and alot of fun!
http://www.campnh.com/index.html
http://www.campnh.com/index.html