The entrance to the HP site is on Pruneridge Avenue and the Oak Room is in Location 48
between Wolfe Rd. & Tantau Ave. (See map below)

If you have to check in at the guard station, tell them you're with Sweet Adelines.

From Wolfe Road: Turn onto Pruneridge Ave. - At the first stop light, turn left into the HP site. (See map below) Follow signs to the Oak Room.

From Tantau: Turn onto Pruneridge Ave (toward Wolfe Road). - At the first stop light, turn right into the HP site. (See map below) Follow signs to the Oak Room.