Glass-bottom kayaks reveal the delicate ecosystem of San Marcos River, including 200 underwater springs & 8 threatened species

High-powered laser pointer & large telescope point out planets, galaxies & nebulae during guided astronomy tour

During 3- to 4-hour trip aboard 30 ft. dive boat, groups submerge into warm Gulf Stream waters in search of turtles, sharks & tropical fish

Five-star dive center's PADI-certified staff leads certified divers on two dips past artificial shipwrecks, coral reefs & wild life

Rental kayaks & canoes coast along azure waters of Maumee River or other nearby waterways for two hours of paddling paradise

Experienced instructors guide groups of paddleboarders on tours of local sights or impart basics of waterskiing, wakeboarding & kneeboarding

Combo of trampoline & bungee harness propels jumpers up to 30 feet in air, pulling off flips & tricks in monitored, safe environment

20 combination trap & skeet fields challenge aspiring sharpshooters as they take aim at 25 wingless clay pigeons under full supervision

Wizard of Oz-themed zipline course traverses 6,000+ feet of forest, reaching speeds of up to 45 mph & heights of up to 95 feet

Runners dash across course peppered with zany obstacles including mud pits & spools to hurdle, then party down with cold beer & live bands