Costanoan Trail to Sulphur Creek Pond and Hanna Grove Loop

Starting from Spring Creek Lane, this scenic loop follows the Costanoan Trail through oak woodlands before reaching the seasonal Sulphur Creek Pond. The route then continues along Flat Top Trail and Hanna Grove Trail, offering rolling grasslands, peaceful forested sections, and sweeping views across Shell Ridge Open Space.

This 2.2-mile loop features 472 feet of elevation gain, making it a rewarding hike for visitors looking to experience a variety of landscapes in a relatively short distance. Spring brings lush green hills and seasonal wildflowers, while the pond often attracts birds and other local wildlife.

Source: Trail information adapted from AllTrails.