I am looking for a horror film from when I was a kid. I believe the movie was between late 60's early 70's (because the chars clothing and hair styles were that era).
There were 4 or 6 people (couples) that were staying (for the summer?) at an old house on a lake. As it turned out, I think I remember this correctly, one of the girls from the group was actually a ghost of that house, wearing a white dress, long orange hair.
I also believe there were some zombie scenes in this movie, perhaps zombies on a boat eating the people.
The old town a few miles from the old house, all of the town
