Sweetwater Reservoir to Cactus Hill is a 5.1 mile moderately trafficked loop trail located near Bonita, CA that features a lake and is rated as moderate. The trail offers a number of activity options and is accessible from March until October. Dogs and horses are also able to use this trail.
A great hike close to town but with the wide open spaces and views most hikers crave. The trail starts at the Sweetwater County Park and parking for day use is free. While you feel like you're close to an urban environment (highway buzz and planes overhead), you can hear the birds chirping, cawing, and screeching and see spring flowers in full bloom! The trail is pretty easy to navigate and you can make this an out-and-back trip if you'd prefer. The summit of cactus hill is a good place to start heading back, or you can continue on to make it an 8 miler. The top of cactus hill has a nice picnic table and good views all the way out to the Pacific.
Nice view, no crowd at all (hardly saw 4 others during the entire hike), good mix of flat and moderately steep climb.
Not many signs so bit confusing without all trail maps and parking is bit tricky if you come early in the morning as you will need to park inside the camp site.