Excursion ideas

[craigtompkins]

I know St. Croix is not visited as frequently as other islands in the area and as such there are fewer posts here and fewer 3rd party options so I'm starting my search early.  We will be visiting St. Croix for the first time in October.  Normally I like to do an island tour the first time I visit an island, but I honestly don't know if I'll ever visit St. Croix a 2nd time, so I'm looking for what might be considered a must do excursion/activity.  Our trip has plenty of beach days, so unless the beach is better than St. Thomas, St. Maarten, Barbados it does not need to have beach time.  Royal Caribbean does offer an excursion over to Buck Island if that's a better option that staying on St. Croix as I have not been there before either.  If an island tour is the right option, does anyone have recent experience with local tour guides?

Thanks in advance