With it being your first time, I would take a drive to St. Jean and Gustavia from Le B when you get there so that driving at night will not be your first experience on the road there. The kids would enjoy the lower path walking to Columbier beach, it's only accessible by foot or boat. They may also enjoy walking around Toiny and Grand Fond beach, which is closer to your hotel. Not a safe swimming area, but lots of shells, coral and rocks on the beaches to look at. When we were there last week, the Christopher Hotel was showing movies by the pool on certain nights...it was advertised in Le News which is available all over the island. My kids started going as preteens and still love it at 16 and 18, happy to answer any questions if you have them.