I know I'm late to this thread , it's been a few years since I've been on this site, forgot how much I enjoyed it, I'll make it a habit again.
BANANAS will bring the fish into a frenzy like chumming, I've snorkelled in the Caribbean numerous times and for whatever reason they go...wait for it....bananas for them. Have a a line in and use bananas for chum, fish up to 5 lbs will come in, hook a smaller one and toss it out for a Cuda.