Hi,
Salamander Hideaway
www.salamanderbelize.com has plenty of bonefish on the right and left of their dock and a lagoon on the back side with a boat to cross the first lagoon and then wade into the second lagoon that's full of tarpon and many other species and all is for free! Not yet enough of fishing? They carry you out to the reef for free reef fishing every other day and 30 minutes later your catch will be part of your lunch!
A fisherman quiet recently had his first "grand slam" there at no cost at all! Cheers