as part of our tour of SE asia we went to Halong Bay, there we joined with a boat that toured us around the islands... it was brilliant, we were served amazing food at every meal, we had crab, prawns and loads of different types of fish...
the weather was gorgeous, so we went for a swim in the water (we jumped off the top of the boats). A local came round on a small boat selling cold beer, so i bought one for 70p, then drank it while floating in the sea :).
the water was so warm, but at the same time refreshing, we climbed to a lookout point to get some amazing pictures, then went swimming again