I just spent 2 months there, from all the fishing stuff i brought down here is what i used.
#8, #4 hooks
200 yards of 4lb test
I had an old reel that worked great and i didn't care about the salt water and sand damaging it. I also bought a $12 telescopic rod that was worth it's weight in gold.
Used sardines and shrimps from any grocery store to catch fish.