Castle Rock State Park Professional Review and Guide
"Castle Rock Park is on one of the highest ridges in the Santa Cruz Mountains. The hike features great variety: cool, dark mixed forests, creeks and a seasonal waterfall, dry, manzanita-lined ridges, grassy hills, oak savannah and above all rock formations. The boulders come in amazing shapes with curves, crevices and caves. On weekends you will see climbers navigate their way up 90-degree rock faces with chalky fingers. The giant boulder that gives the park its name sits in high woodland toward the end of the hike. There are interpretive exhibits and scenic overlooks that show off the park’s 3,661 acres and over 50 miles of hiking paths. Bring water (limited facilities) and dress in layers. If you are looking for a rewarding backpacking trip, try the three-day, 30-mile Skyline to the Sea Trail that starts at the trailhead for Saratoga Gap through Castle Rock and Big Basin redwoods ending at the sea by Año Nuevo, mostly downhill. This eTrail also includes suggested nearby attractions, camping & lodging, restaurants, and local outdoor retailers."