No special access issues
From road 222 you turn towards Henriksdal (signpost at a big crossing) and follow Kvarnholmsvägen. Pass two roundabouts. At the third roundabout there is a parking lot directly to the right (Kvarnholmsvägen 50). Park and Pay (SEK 8-10 per hour). A wooden staircase leeds you to the bicycle/walkway path. Follow the bicycle/walkway about 500 meters and the crag reveals itself clearly visible 20 meters to the right of the bicycle path.
Public transport: Take bus 53 from Slussen to Henriksdalsberget and walk through a little forest, or continue the bus to Gäddviken and walk along the cycle path to the cliff. Either way it's a 400 or 500 meter long walk.
It's also possible to take Saltsjöbanan (train) to Henriksdals station and walk one km from there.