Betty Blue is a compact Baltic wreck dive at Gålö, with a small sailboat on the bottom, reed beds in the shallows, and a wall section nearby for divers who want a longer pass. It suits relaxed local sessions and Open Water Diver-level wreck diving. Cold water and seasonal clarity matter more than raw depth. The shallow plant zone makes the approach feel easy, but the wreck rewards slow, careful buoyancy once you move off the margin.