Question: "What to do on St. John?" Answer: "Go to Jamaica instead."

We are two couples looking at St John. staying in a villa for a week in July. The two women are fine with lounging around a villa, drink and book in hand, getting out to explore a little. The men, however, are concerned : "what will we do all day?" .. When we traveled to Jamaica with this couple it was great at an all inclusive, as we women lounged as mentioned above and the guys would wander off and get in a kayak race, volleyball, sit at a bar, etc. They were off doing something all the time. To answer the guys: what would be on the agenda in St John?? Thanks to all.