American Canyon, Sinister Paintball, Sherwood Forest
This place is the best paintball field in my area. The staff there is excellent. Very helpful to make sure you have the best time. The prices are fairly cheap. 15 entry, 8 all day air. They have many different courses. Lego, Hyper, Hydro, Spool and my favorite, Air. They have very organized rec ball. The refs are very fair and know what they are doing. Very safe. If you live in the Northern California Area check this place out!