From the angle between south western and Kervala, I think the northern one may be at the location marked Haaga. Just the the NE of the junction Metsalantie & Hameenlinnanvala.
ETRS-TR35FIN 384362N 6677944E. Nothing much to see, but it appears to be more or less in the right place, is on a rise and is open.
Miessaar Karlo also has significant relief and there may be a suitable site in the ridge area. I found the exact location tricky to guess at though.
