Mount Diablo Grand Loop Trail is a 6.1 mile moderately trafficked loop trail located near Clayton, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round.
The Grand Loop offers a bird's-eye view of the Bay Area, and sometimes glimpses far beyond, of the Farallon Islands, Mount Lassen, the Sierra Nevada, and the Santa Cruz Mountains. It's also a a hotspot for wildflowers in the spring.
Great trek. Went on a pretty clear day, almost constant views. It was some work though, but well worth it.
great views but was longer than 6.2 miles. more like 7.3 miles. so plan for 4.5 hrs.
This hike provided a relatively decent hike, but there wasn't a lot of shade for most of the hike. The scenery wasn't breathtaking, perhaps because of the time of year that I went? I'd still recommend trying it out though, if nit just for a day adventure.
Gorgeous views of the whole tri-valley area, especially on a clear day.