Hi Jon,
Are you gonna take any fishing gear, or is this strictly an R&R type of trip?
The last three trips we took (St. Lucia, and twice to Jamaica) I didn't take any gear. I only bring fly gear if I plan on booking a guide. It is just too risky to be fly casting near the beach. I'm not frequently looking around to see if someone is walking behind me and wouldn't want to whip someone in the face with the line of worse yet hook someone!
I bring a 4 piece medium action 7' spin rod, a Plueger reel loaded with 10# braid, some swivels and a spool of 20# nylon tippet and a couple of 12" long wire leaders. I bring one plastic box with a couple of crank baits, half a dozen hair jigs, and some swim baits. I try and get up at first light and walk away from the resort if possible. Then I fish until around 8:00 a.m. or until people start walking around too much.
I have caught barracuda, snook, bonefish, red snappers. It is fun and salt water fish can really put up a fight. You don't need much in the way of lures because the areas I fish are very under fished. There may be hundreds of people in nearby resorts but no one ever fishes.
Did I ever post up the picture of the big barracuda and horse eye jack I caught? Awesome fish on a big Yo-Zuri plug. It bit so hard that it penetrated the hard plastic body in half a dozen places!
I Googled fishing in Antigua and found out that right behind the resort are a few lagoons supposedly loaded with baby tarpon. "Baby" means 5# - 15#. Pretty exciting babies. Also loads of bonefish, snook, 'cuda, and other sport fish. Can't get too focused on fishing though since this is time away with my wife. Kind of a combined Anniversary and birthday event.
Check out this link - it has a ton of pictures of all the sport fish this guide goes after. Really neat.
http://www.antigua-flyfishing.com/