I, like you, was locked in for 6 hours, and wanted to stay in the water the whole time, but....
At Cococay beach, there is a big lagoon, which was ripe and ready for me...as the morning progressed, the crowd stirred up the water, making it very murky, as well as there were so many rocks, that my scoop was pretty much useless...
By 11 am I was up on the beach, then I started finding US clad like crazy... Made no sense either, as the island was exclusively Seapass cards.... By lunch time, my wife was all hungry and bored, so I called "one more target" Bang! There's the ring...I quit after that.
I toted the Garrett Camo duffel bag with me at all times, never let it out of my sight. Sure I got a few looks, but mostly from guys who'd wished they brought theirs.
I figure I've got a solid 3.5 hours in the water, and then I'll give the sand a try as last ditch if I haven't found bling by then. I get to start just 2 hours after low tide... and high tide is 4 hours later. There's only a 2.5 foot difference this time of year, so I figure if I start at thigh deep to start with, I should be able to cover more water (easier to swing the coil with the box out of the water).
Did you have any issues with the AT Pro in the water? My understanding is to just ground balance IN the water, and I should be good. I'm also considering NOT buying water headphones if I'm only going to be standing in the ocean. Thoughts there?