Sports played with spheres are easier to master than angular sports, such as Rubik's cubing and brick bowling. Circle fun with today's Groupon: for $10 you get 30 minutes of batting-tunnel hitting at Extra Innings Bakersfield in San Joaquin Valley (a $20 value).
Extra Innings’ hitting haven hosts five reservable batting tunnels that can host individual hitters or teams in training. Each all-American hideaway spreads 70 feet long and 15 feet wide, allowing ample space for ball travel and triumphant somersaulting. Each lane features a pitching machine that is adjustable for all ages and skill levels. Groups can gear up in tunnels equipped with L screens, and tees are available to help lone hitters perfect connections between bat and ball. The air-conditioned facility makes for comfortable training so athletes can condition in any weather without having to perform embarrassing rain dances.