I'll be doing a southern Caribbean cruise on Princess in late Jan which includes Barbados. I'm traveling with my family of 6 with ages from 5 to 65. What are some "don't miss" sights and experiences? Also, the shore excursions set up by the ship are a bit pricey, particularly when you multiply everything by 6. It seems like for that many people I should be able to get a better deal on a comprehensive tour by just privately hiring someone on the island if I can find someone I can trust. Any ideas?