Horrors of Spider Island

Horrors of Spider Island is a 1960 West German horror film. Bring on the dancin' girls! The girls crash land in the ocean with the film crew, and they barely make it to the island. Once there, they find the professor who was researching uranium dead in a huge spider web. Then one of the men is bitten by a spider and turns into some kind of were-spider creature who stalks the girls. The girls spend all their time taking showers, changing clothes, skinny dipping, clawing at each other, dancing, and then fighting over the 2 men who come to the island to be involved in the research. And then the men fight each other over the women. I'm not sure how I ended up sitting through the entire thing, but it's just over an hour long.

via Youtube:

1000 Misspent Hours gives it -3 1/2 (yes, that's a negative!) stars, which puts it into their "so bad it's good" category, and says, "everybody who cares about movies in which guys in tacky monster suits menace half-naked girls needs to see Horrors of Spider Island". Million Monkey Theater has a detailed plot summary and screenshots and calls it "a fairly sleezy West German exploitation movie from the days when such things were sure-fire money makers, marketed to audiences lusting for some skin and sex without any sort of pesky plot getting in the way." Weird Wild Realm admits "many a fan of cheap & cheezy vintage horror has assessed it as of the "so bad it's good" category" but doesn't agree. HorrorNews.net has plot information and planty of screenshots and this:

there is an overall sense of unbelievable awe at the hokiness of it all that transcends the crappy building blocks and elevates the film, just ever so barely, to the level of fun bad movie making. In much the same way people stare morbidly at train or traffic accidents, this movie compels the viewer to keep watching, if only to see where the wreck is going to finally stop.