I haven't visited any countries in Central America as of yet.  There are a few that I would love to see.  Visiting the rain forests and doing some diving off of Honduras to see some Whale sharks.  Hitting Belize to dive in its famous Blue Hole with silky sharks would be great.  I would also like to see Costa Rica and possible take a trip to the Cocos Islands off the coast (Pacific side) to dive with the schools of hammerhead sharks that swim off the seamounts.  I think it would also be great to visit Nicaragua and its Mosquito coast as well as Lake Nicaragua, one of the homes of the only shark to live in both salt and fresh waters the bull shark.