Charles Koehler Park gives players a practical park tennis option in Fontana, CA, with the listing centered around 6841 Fairchild Ave. Because the listing notes 2 listed hard courts, players can think ahead about crowding, partner meetups, and how much time they may need. Hard courts reward early preparation, solid movement, and consistent contact, so this is a sensible place for practicing tennis with structure. Because the listing is marked free, it is especially appealing for recreational tennis, beginner practice, and no-pressure rallies. The schedule note is Park hours; that detail matters if you are organizing tennis partners or trying to avoid peak demand. No lights are marked in the listing, so daytime play is the safer assumption. For booking, look for posted rules or a city reservation page; otherwise, plan for first-come, first-served play and a friendly rotation. It can work for beginners learning tennis, stronger players sharpening patterns, and friends who simply want to play tennis without a complicated setup. That neighborhood context matters, because the best tennis plans are often the ones that fit smoothly around the rest of the day.