if you get to panama, look up nombre de dios on the maps. in the harbor you will find a treasure trove of historic bottles etc. nombre de dios is where columbus, sir francis drake, capt morgan etc all visited. rum bottles, glass bottles etc. i did two dives in the channel, vis not good, 20'-30' or so and had a blast!!! do not take metal detector. the panamanian authorities do not like you taking their treasures. i had no problem getting the rum bottles and glass bottles through customs. not sure if you found pieces of eight etc they would like that. i am sure they are buried there somewhere. all those drunken sailors for centuries etc, there's got to be much under the sand. if you want to go there, contract jimmy at carribeanjimmys.com he is the only dive operator in the area. real good guy. he knows plenty of wrecks to go too with things to find. he knows where the lobster are too. Good diving.!