Nikon Coolpix AW110 and Coolpix S31 waterproof compacts announced - photo 1Nikon Coolpix AW110 and Coolpix S31 waterproof compacts announced - photo 2Nikon Coolpix AW110 and Coolpix S31 waterproof compacts announced - photo 3Nikon Coolpix AW110 and Coolpix S31 waterproof compacts announced - photo 4