Looking at the Tortola excursions, and cant seem to find any first hand info on this one. Has anyone done this one, and can you tell me about it? Looking for a fun beach day that will entertain my 24 and 26 year old boys, but also needs to be a pretty beach for my older MIL to enjoy (she's not a swimmer, so she just wants to look at it and perhaps walk along the shore). TIA!