The website has written directions here, but as they say, a picture is worth a thousand words.
Santa Cruz Facilities From Northern California
From Highway 17 take the “Mount Hermon Road” exit at Scotts Valley. If coming from the north, turn right at the light onto Mount Hermon Road. Once on Mount Hermon Road, proceed 3.5 miles through Scotts Valley to the “T” and signal light at Graham Hill Road. Turn left onto Graham Hill Road.
Turn left onto Conference Road.
Do you see this bridge? You’re almost here!
You’re getting closer BUT you’re not here yet.
See that ramp to your right? After you park, that’s where you’re headed.
Park your car and walk up this path…
When the path ends make a U-turn, head up the ramp, climb the stairs…
And YOU’VE MADE IT!