Arc Boulder is one decent block with one current problem.

From the main parking lot at Lynn Woods, head right around the pond on Ox Pasture Road. After 8 minutes, take trail on the left that passes along the shoreline, passing the land bridge. After about 5 minutes, head uphill into the woods, take the small trail that heads left for two minutes, and this block will be on your right.

Alternatively, from the Bow Ridge Reservation area, head toward the pond and traverse left around the pond about 100 feet above the shoreline, passing the "No 69" cliff and continue on about 6- 8 minutes to find this solitary block on the narrow trail. Coming from Bow Ridge, the "no 69" cliff is located on the left side of the shore about 4-5 minutes from the beginning of the pond.