"Blue Lagoon" was a 63ft type 2 BPBCo "Whaleback" either an HSL (AirSeaRescueLaunch) of the RAF or an MASB (MotorAntiSubmarineBoat) of the Royal Navy: DOES ANYBODY WHAT HAS HAPPENED TO HER, PLEASE!! (and what ENGINES are fitted now)(originally 3x550hp Napier "Sea-Lions")