Sporting events are full of memorable sounds, from the plinking of a golf ball rolling into a hole to the hiss of a basketball deflating after being caught by a referee who never trims his fingernails. Remember what it sounds like when you smack spheres around with today's Groupon: for $10, you get $20 worth of mini golf, batting cages, and climbing-wall expeditions at Boulder Creek Amusement Park.

At Boulder Creek Amusement Park, people tap in putts on two 18-hole golf courses, wallop spheres in eight Monopole batting cages, and clamber up at 24-foot climbing tower. The Adventure mini-golf course ($7 for adults; $5.50 for children 12 years and younger) leads golfers over drawbridges and past whitewater rapids, and the wheelchair- and stroller-accessible Sport course challenges putters with lengthy greens and simulated sand traps. Ninety-three-foot deep batting cages ($1.75 for 15 pitches) offer eight stalls equipped with softball and baseball pitching machines with 35-foot-high ceilings to mimic the feeling of slugging home runs or clubbing asteroids from whence they came. Looming over the park, the 24-foot Mt. Boulder Climbing Wall ($4 for two climbs) features grips and foot holds designed to entice climbers upward with challenging configurations and spacing.