My wife and I have been to St Thomas 2 times for long weekends. The 1st time we dove around the Red Hook area and it was ok, but the last time we went which was in August we dove around the south west side of the island. The diving there was awesome! Lots and lots of wrecks, believe it or not. I think they said there were like at least 12 different wrecks there with a 30 min boat ride and no deeper than 100 ft to the sand. We dove with Blue Island Divers out of Crown Bay Marina which was very easy to get to from our hotel, Best Western Emerald Beach. The crew was great, the dive boat was clean, roomy, and comfortable. They said they never take over 12 divers. We dove the WIT Shoal which is almost 400 ft long and served in the Pacific in WWII. We also dove some other WWII hospital ship the Miss Opportunity. I think they said this was over 300 ft long. I was very very surprised at the quality of diving in STT. There is also a killer bar/resteraunt at the marina but I can’t remember the name. The hotel was nice. Had a nice pool, beach, and bar right on the beach. Didn’t spend much time sightseeing, but from what I understand thers plenty of nightlife and things to do. We also had tons of flight options from the east coast. Dont know where in PA you are but you should not have any problem getting a flight from Philly or Pburg. Hope this helps. Let me know if you have any other questions.