Moderator Note: This Place is rejected as the description appears to encourage illegal use of the showers.
Enter the pension maybe better later at night. Go in from the garden restaurant. Take the stairs up, there is always two showers on the floor pick one and enjoy. In case you see someone just act like you are staing there over night.
Why? By checking in after you’ve visited a place you let others know this place is still functional. You can also add or correct any information.