Bohelli Regional Park campground in California offers breathtaking views of Mount Diablo and the park's rolling hills. The area provides numerous outdoor activities such as hiking, biking, and fishing in the nearby reservoir. The campground has 63 sites with amenities such as water, electric, picnic tables, and fire pits. The campsites are first-come-first-served, and reservations are not accepted. The best time to visit is in the spring and fall when temperatures average around 60-70 degrees Fahrenheit. However, summer temperatures can reach over 100 degrees Fahrenheit.