No special access issues
From Svolvær, follow the E10 westwards. About 700 meters after (north of) the Stem Bastensen area the Monster boulder appears on the right side, just next to the road. You can't miss it. Parking can be done on the left side (seaside) of the road in the bend about 200 meters north of the area. It may be worth going past the parking and turn around using one of the smaller parking spots on the right side a bit further north (see La Perla).
To reach boulders B-G take a faint path that starts about 120 meters north of the Monster boulder and follow the stream up through the forest. Boulder B will be right in your face after about 100 meters, below the power lines.