With a variety of terrains & scenery, California has an abundance of areas to ride bikes off road. Mountain biking is a very popular sport in the golden state. California biking clubs: social, hobby or hard core! From beginner to advanced, you'll find the perfect trail here. Many snow ski centers become mountain bike havens in the warmer months. They offer to take you up on on their ski lifts and then you get the exhilating downhill only enjoyment.