Coley,
I have only fished bones in Belize waaay down by the southern border - Dangriga and south. But there the flats were firm sand and no seaweed issues. I ssupect both issues may be seasonal?
If you can get to South Water Key I can tell you you will find a ton of bones. But they are in water from 2-20 feet deep and they sure didn't seem to fight nearly as well as the ones I have hooked in other places where the water was only a foot deep.
Dave, we stopped at South Water Caye on the sailing trip and like many of the offshore cayes, the flats and beaches were a lot cleaner and a lot more conducive to wading and sight fishing in what I would imagine is a lot more typical style. Unfortunately for me on the sailing trip fly fishing wasn't a group priority and the spots we stopped were for swimming and chilling. Believe you me it was hard to watch all of that epic water go by without being able to stop and check it out.
If I were to do it again I would taking a casting rod and a handful of spoons to chuck while on the sailboat as we passed numerous schools of jacks tearing up bait balls while sailing along.
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I am still not a cop.
EZ Thread Yarn Balls "I don't care how you catch them, as long as you treat them well and with respect." Lani Waller in "A Steelheader's Way."