St. Kitts Snuba Excursion and Beach time

[Zendeck]

Hello, I am specifically interested in hearing from RC folks that may have done the Snuba excursion in St. Kitts.  We've done it in Cozumel Mexico and loved it but because it was a short early morning excursion, I did research and we took a cab from the Snuba sight to a close by beach resort for the remainder of the day and cabbed back to the ship.  The RC Snuba seems to just be for a couple of hours and it does include a short time at a beach but it doesn't say what beach.  I'm wondering is St. Kitts the type of place like Cozumel where we could just stay at the beach after the excursion leaves or even cab to a different beach and stay longer so we have a full day on the island.  Thanks!