Cars in the sky? The tallest city hall in the US? Pick these five Opal destinations to have thrilling sky adventures, and catch the stars.

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Acadia Night Sky Festival [Bar Harbor, ME]

Each September, science, art, and nature conservation convene around Bar Harbor to explore the beauty of Acadia National Park and its surroundings. For four days, venture on guided nighttime hikes or row out along Castine Harbor for a bioluminescent night paddle under some of the clearest skies on the Eastern Seaboard.

Where to Stay Harborside Hotel, Spa & Marina | West Street Hotel

Sky Dive Key West [Key West, FL]

A tandem skydive certainly puts a new perspective on this stretch of coastal Florida where swirls of blues and greens blend across the Keys. Take in the rainbow of reefs, span of the gulf, and an aerial view of the Atlantic while experiencing the thrill of falling toward the sandy Key West shore. The best part? The slow parachute to the ground where you can spend more time looking for dolphins cresting the waves.

Where to Stay Margaritaville Key West Resort & Marina | Sunset Key Cottages

Sky Surfing [Clearwater, FL]

This “motorcycle of the sky” looks more like a scooter that crossbred with a hang glider than it does a plane, but don’t let that discourage a ride. With an open-cabin layout, there’s nothing blocking your view of Clearwater Beach and the Skyway Bridge. You’ll even get a chance behind the wheel with a flight lesson. Just remember to take a look around, because there’s no cameras allowed.

Where to Stay Sandpearl Resort

Hot Air Ballooning [Lake George, NY]

An hour among the clouds comes with views of rolling New York farmlands, historic villages, and the Adirondacks. Guided by 20-plus-year area veteran Mike Delsignore, he’ll direct your gaze to the nearby Green Mountains, and if you rise early, he’ll show you the New York sunrise. After the flight, join tradition by popping a bottle of champagne to celebrate a successful flight.

Where to Stay The Sagamore Resort