Whether you want to blast your way through an opponent or just hit a few balls, the Golden Gate Park Tennis Court complex has 21 well-kept courts open to the public seven days a week. Reservations are only accepted for weekend play, but during the week, courts are first-come, first-served. Fees run from $4 to $6. Your best bet for weekend reservations is to call exactly at 4 p.m. on the previous Wednesday.

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