The Strangeness (1985)

A group of people go into a cave and almost don't come out....because they spend most of their time getting lost and wandering around in the dark, and fighting and/or running from a large claymation monster with a questionable, sexually suggestive head design.

This episode is also available as a blog post: http://randommoviemusings.com/2021/06/23/the-strangeness-1985/