Regarding your desire to see Anguilla...go for it! Anguilla is different than St Maarten. It's quieter,less crowded, has more of a Caribbean feel to it and has beautiful beaches. You could take the early ferry over, get a tour of the island and have the driver bring you to Shoal Bay east for the day. You'll tell him what time to return to bring you back to the ferry. When we vacationed in St Maarten, we would take a day trip to Anguilla but it was never enough. Finally, we booked a separate trip each winter for our Anguilla fix. Enjoy!