In the middle of the Cospudener See, on a tiny island, a yellow postal mailbox sticks out of the water.
This unusual mailbox is often used by the water tourists on the lake. They come with water treadles, rowboats, paddle boats or with the air mattress.
The island mailbox is emptied once a week during the season. Before the post goes through the normal post, the card or letter gets a special cancellation.
You can buy a watercraft at "Paddelmax"Rent. He rents out very well-maintained rowing and pedal boats.