Pararescuemen from the 56th Rescue Squadron, and members from the Naval Explosive Ordnance Disposal Unit, prepare to jump overboard from a small watercraft into the 40 degree north Atlantic waters off the coast of Keflavik, Iceland, to participate in the exercise NORTHERN VIKING '95 by acting as "survivors" to be rescued by an HH-60G Pave Hawk from the 56th Rescue Squadron, Keflavik, NAS