Set in But In LA County), Mt. San Antonio College (mt. Sac) is the kind of campus stop that works for players who want a useful place to rally, drill, or meet for doubles. With a flexible tennis setup, the location can support anything from a quick warm-up to a more organized doubles rotation when space is available. With a hard-court setup, players can expect the kind of predictable bounce that helps with tennis hitting, returns, and focused drills. Hours are listed as Restricted Access, so it is worth planning around the posted window instead of assuming the court is always open. No lights are marked in the listing, so daytime play is the safer assumption. Campus access can shift by semester, team schedules, and events, so check visitor rules before arranging tennis lessons or competitive play. Players could use it for tennis lessons for adults, private tennis lessons, rally games, live-ball drills, or a friendly set after work when facility rules allow. A no-fee listing makes it easier to invite a new partner, test a tennis coach, or add one more weekly hit.