The Grey Pine Trail boat ramp in Santa Margarita, California is a concrete boat ramp that is approximately 20 feet wide. It services the Santa Margarita Lake, which is a reservoir located in San Luis Obispo County. The lake is a popular destination for boating, fishing, camping, and hiking.

According to the latest information available, the Grey Pine Trail boat ramp allows for motorized boats, sailboats, canoes, kayaks, and paddleboards. However, it is important to note that there may be seasonal restrictions or closures due to water levels or other factors. Visitors are advised to check with the local authorities or the lake's website for up-to-date information on boating regulations and restrictions.

Overall, the Grey Pine Trail boat ramp provides convenient access to the Santa Margarita Lake for a variety of watercraft, making it a popular spot for both locals and visitors alike.