Do NOT book with this company. From the start of the trip the company misrepresented themselves, provided poor customer service and even hung up on multiple distraught guests who called when at 11pm at night on the day the trip started we still had not boarded as they had too many guests vs. spaces on board and one of the skippers hadn't turned up! Once we eventually made it onto the boat, no one was there to explain who was in what room (luckily we found a list and sorted it ourselves at around 1am!). Even worse, no one ever gave any safety instructions - e.g. where life jackets were, etc. which should have been extra important in Greece given the rough waters between islands (especially on the way to Mykonos - see below for more on that - the coast guard had to assist!) We booked and paid for their 'new' boat yet ended up on an older boat, which they claimed had the same amenities anyway (it did not - our AC in our room did not work for starters). However, even worse, some other guests were 'upgraded' to smaller, less equipped yachts. When they boarded, those smaller yachts did not even have food, water or toilet paper on board - the crew had to buy them that night! At no point through all the difficulties sorting boats did any of the Sail in Greece crew offer anything to the guests (not even free water! though given it was 11pm at night and we were still standing on the dock, I think what everyone really needed were a bunch of shots...). I and a few other guests all tried to call the 24 hour customer service line at this point to understand what the issue was and if they planned any reimbursement for the fact that Day 1 was almost over and we were not on the boat. They hung up mid conversations on each of us. Once on the boat, we left Santorini late the next day as they had too many guests vs. spaces on the boat. When guests called the Sail in Greece 24 hour helpline, they kept insisting that the boats held the number they placed on them, even when the boat's captain said otherwise. Further, even if it did hold the number of guests that Sail in Greece claimed, there were not enough life jackets (a detail they were unconcerned with). Finally we set sail - and who was the first one drunk that day? One of the Sail in Greece crew! Highly unprofessional. Further, throughout the trip, we were given updates and information last minute. Some day trips/tours did not happen as they didn't book them in time. We never had our free beer pong, the BBQ was a mess - one of the crew offered up our alcohol to other guests saying it was 'free' which caused tensions. To top it all off, on the way to Mykonos, one of those smaller 'upgrade' yachts started sinking and needed to be rescued by the coast guard. All in all, Greece itself is beautiful and sunny and a great time but do in on your own (ferries/flights) or with a different company! I've never seen such disregard for safety, customer service and simply living up to your promises/obligations.