Located in Northbrook, the newly renovated Glenbook Racquet Club is the North Shore's largest indoor tennis facility. Glenbrook offers complete in-house training courtesy of experienced instructors, as well as a state-of-the-art facility that includes 10 courts, full showers and locker rooms, and a sauna and whirlpool. Additionally, the new on-site pro shop offers racquet restringing services and professional-level accessories. Junior classes are also available for budding tennis stars ages 4 and above.