hi there! we are headed to CSA for our first time and i had a question. we are going with friends, who will arrive the day before us, we only have a couple days together before they leave before us, can they make reservations for one of the restaurants for the 4 of us when they arrive, or can they only make one for themselves and we have to hope we can add ourselves on? and i heard that someone mentioned how hard it was to get on the catamaran trip, we are not going until end of september, so not sure if that is busy time or not, but we will have issues getting on that with our friends too? thanks for your help!