California

Surrounding Lake Perris in Southern California near Moreno Valley there are a number of trails that are not exactly fun but, there are a few hills that are challenging and the scenery is rather nice if you enjoy wide open spaces. Often I will ride the various trails until I am nearly exhausted. Then I will ride downhill to the lake. There are restrooms with water fountains. The water is clean and surprisingly cold. Great for refilling your water bottle or camel backpack. After refilling I have on hot summer days taken a dip in the lake.

This is, in my opinion, the best trail in the Temecula Valley Area. It's not my favorite trail but, recently it's the one I ride nearly every day. 

Located on the Santa Rosa Plateau near Wildomar this trail is long and spans a wide variety of terrain. It has parts that are challenging and parts that are just fun.  

(especially for a beginner)

This is probably my favorite trail I have ridden in California thus far. It's a basic trail for the most part but, it is a very scenic trail. One very nice feature is the upper trail because it hugs the inside of the canyon up about 20 feet above the main trail. This upper trail allows for a rolling ride with a panoramic view of some beautiful orchards, , occasional snow packed peaks, some attractive hillside houses and and a lazy winding train-track. About half-way through the trail there is a lookout spot. It's a bit of a push to get to the top but, it's well worth it.