This geocache is hidden near the bus stop "Stockrosgatan" in the Ekhagen area. This is a busy area, so you will need to find without drawing unwanted attention to yourself.
You are looking for a small container where one could hide a key. There is a very small area for trading objects, but you will need to bring your own pen.
Lycka till!
(Thank you to Kevin for helping me hide this geocache).