Assume you should be able to check in via ROAM, but confirm before. I would stop at Waterlemon Cay for a snorkel, then hit Maho for lunch. Head over to Honeymoon/Caneel/Scott for the afternoon and evening and take the long dinghy ride to Cruz Bay for dinner/shopping. Then go to the south side the next day for a quiet day/night. Stay at Salt Pond and hike Ram Head or at Great or Little Lamshur (hiking options here as well). Both have good snorkeling options and beaches, but nothing else. Much more secluded. Then the next morning you could head around the east side of the island (could go to Coral Bay/Lime Out), and head up to West End to check back in. All of this is ambitious for a couple of nights, however.