We went from tsvili beach/harbour with Capt Spyros and speedboat,good fun trip,ok if you go slow it feels choppy but most of the time you are just speeding along, shipwreak beach is small stones but ok ,the water temp in late Sept was warm,he gets there early so you have the place to yourselves,then to the blue caves ,a stop for lunch (exellent taverna right on beach) then another beach stop ,blast back to tsvili beach and back by 13.30.All in all a great trip with a great crew (2).And yes the water is that blue.