... and to go swimming if necessary. That's why we designed the Marine binoculars to be waterproof, corrosion-resistant and buoyant. We recommend that you have Bushnell® Marine binoculars with you on board. Their bright and sharp image will appeal to you just as much as the rubberised exterior, which absorbs shocks and ensures a secure grip. Fully coated and equipped with the best BaK-4 prisms, they should be a part of your standard equipment if you spend a lot of time on board – or when you take shore leave.