Is they any difference in the experience at Castaway Cay vs Lighthouse? I took my granddaughter a couple of years ago at Castaway, and now this time it's myself and 3 grandkids ages 8 to 12 and they want to do it. We have a day at both places and I'm trying to figure out best day to do. I'm leaning Lighthouse as it seems there is less " activities" there and they can do the slides and ropes course and snorkel etc at Castaway, maybe do the paddle bikes