Shock Waves (film)

Shock Waves, alternate titles Almost Human UK, Death Corps, is a 1977 horror movie written and directed by Ken Wiederhorn. A group of tourists encounter aquatic Nazi zombies when they become shipwrecked. It stars Peter Cushing as a former SS commander, Brooke Adams as a tourist, and John Carradine as the captain of the tourists boat.

Rose is part of a group of tourists on a small commercial boat. The Captain and his mate, Keith, share an attraction with Rose. Also on board are Dobbs, who is the boats cook Chuck, another tourist and a bickering married couple named Norman and Beverly. After trouble with the engine, the navigation system goes haywire after they encounter a strange orange haze. The others sense that something is wrong. Norman in particular becomes abrasive. In the darkness of night, a hulking ship suddenly appears sideswipes their boat. The Captain sends up a flare, which momentarily lights up the eerie sight of a huge, rotting vessel wrecked nearby.The next morning, everyone wakes to find the Captain missing. Realizing the boat is slowly taking on water, everyone evacuates in the lifeboat and makes for a nearby island. They see the huge wreck in the light of day it appears to have been there for decades, nothing more than a skeletal framework, and now seemingly immobile, stranded on the islands reef. The group is startled to find the body of the Captain, apparently drowned while he was trying to check the underside of the boat for damage. They explore the island and discover a large, rundown hotel. At first they think it is deserted, but they discover a reclusive old man living there. ........

Source: Wikipedia