We would like to do the Horseback ride on the beach... Leaving at 9:30 returning around 12:00...Considering taking sandwiches from room service for lunch with us. Then we want to do the Short Excursion to Stingray City with Capt. Marvin's... from 1:45 to 3:45 (Must check in at 1:15) Will we have enough time to get back to the boat and get ready for early seating at dinner? As beautiful as the say Grand Cayman is I sure do wish that we were at this port longer. Any experiences and opinions????