Harbouring curiosities

Went Kayaking at the weekend and passed this strange monument opposite the Yacht club. It appears to be some kind of pile out at the side of the channel festooned with the tops (And I think a few bottoms) of young ladies swimming costumes.

Must be one of those curious local Canadian customs, crossing the channel at night to display one's prowess at swimming in the harbour. Sounds a bit icky to me though, exposing young ladies delicate little places to the importunate ravages of the local piscine population. Watch out for those Eels, girls, they get everywhere.