New Year's Eve cruise on the Mariner. We received an email informing us that embarkation would be delayed, and this was correct. As Diamond Plus members, we were shown to a separate waiting area. Previous cruises on the Voyager included champagne and cookies while we waited; Mariner only offered cups of water. The RCCL people in the area were very friendly.
The crew seemed truly happy to be on the Mariner. We had a D1 balcony on the port side. Great views of the island and pier at Roatan, with the local band playing below us. The little village has some great costume jewelry at reasonable prices.
Tendering at Belize City was complete by 9:30, with a 30+ minute tender ride each way from the ship to the dock. The sea was calm for us, but it might be a rough ride in bad weather. It pays to go early if you book a tour.