No special access issues
There are no access issues. The closest parking is "Karviaisenkaari", which has multiple spots open for many hours. The approach is not long, but goes over a stream and you have to cross it with a plank bridge. Otherwise there are no issues.
As always, respect the area. Leave no trash, brush your tick marks. There are almost always people walking their dogs along the path next to the wall, so keep that in mind.