Sitä close to downtown Helsinki with vertical sport climbing. About 10 minutes of walking distance from the Mellunmäki subway station. Naulakallio is a sunny and fast drying cliff with a very long season from February to November.
Naulakallio is 16 meters high which is very good by capital region standards. There are only few cracks and thus most of the routes have been bolted. The easier routes tend to have more bolts than the more difficult ones. Naulakallio hosts the Finnish multipitch oddity if you combine Kesäaika and Naulatraverse. Combining these routes is also possible in one very long pitch but the rope drag can be quite bad.
Use the parking place described! Don't park your car below the cliff or on the parking place of Naulakallion lastenkoti! Parking next to the cliff is asking for trouble.
Also note that the brown doors are in active use. People come out of the doors without warning many times a day. Please be polite!