Harmony Headlands SP is a 784 acre coastal park located approximately 5 minutes north of the coastal community of Cayucos in San Luis Obispo County on Highway One. The park unit number is #745.

The park is open for day use hiking from 6am to sunset. A small parking lot is visible along the west side adjacent to the southbound lane of Highway One. The parking lot can accommodate approximately 10 vehicles.

A one and half mile trail from the parking lot extends west to coastal marine terrace grassland with steep hills and panoramic views of the Pacific Ocean.

There are no services available other than a portable restroom next to a small historic ranch house near the beginning of the trail. Cell phone service is sparse.

A group of State Park Volunteers walk the park and provide information to the hiking public and assist State Parks with monitoring park activities and reporting emergencies.