https://edition.cnn.com/travel/article/women-only-island-finland/index.html
https://supersheisland.com/
I have a great idea to troll some feminist i have a sail boat and would like to find the location of this island.
In Finland we have this thing called Everyman's rights
http://www.ymparisto.fi/en-US/Nature/Everymans_rights(27721)
So its completely leagal to go wonder around the island, we just need to find it.
It is said to be one of the islands sout of Raasepori Finland