Last water taxi leaves at 5:00 p.m. There is no way you can arrive, get through customs, catch a cab to downtown Belize City and catch the water taxi. Flying is your only option to arrive in Caye Caulker same day. Both Maya Island Air and Tropic Air have flights to Caye Caulker for the 4:30 arrival. Make life simply and fly. Have a safe flight and great time in CC.