Physicists estimate that 47% of the energy in the universe is stored in stars, and the other 98% rages inside human children. Release your child's unyielding cosmic energy with today's Groupon: for $5, you get one open-jump pass to Jump Around Utah (a $10 value).

Jump Around Utah lets tots perfect their hopping skills and exercise away pent-up energy in an indoor inflatable arena brimming with bouncy surfaces and billowy obstacles. The open-jump pass allows aspiring gymnasts and moonwalkers to cavort all day long in the brightly colored activity center. They'll explore bounce houses, swan dive onto a 40'x25' inflatable jumping pillow, and traverse a play land of climbing areas, slides, and tunnels perfect for taking shelter in during impending bounce-pocalypses. The daily schedule changes weekly, so be sure to check it before heading out for a leapfrog fest.

Parents, admitted free of charge, may join in on the jumping or keep an eye on their kids from within a comfortable sitting area. The free WiFi gives adults access to email accounts and the latest news on grown-up things, such as the stock market and celebrity dog marriages. While the admission fee for children 3 and older is $10 for open jump, admission for 2-year-olds is $4, 1-year-olds $2, and those under 1 year old free.