Lots of folks are up from a romantic island getaway filled with sand, sun and fun. Who wouldn’t be? Even so, there are plenty of island destinations that offer up some pretty bizarre and unique experiences, which contrast strongly with a typical island beach holiday.

Some of these islands are stunningly beautiful, some are downright odd, and few of them are even a little bit dangerous. Here are some of the strangest islands in existence. Maybe, if you’re adventurous and lucky, you’ll be able to visit one or two of them someday.