Flume Gorge hike in Franconia Notch State Park, New Hampshire. Franconia Notch is a spectacular mountain pass traversed by a unique parkway which extends from the Flume Gorge at the south to Echo Lake at the north. Photo by Mike Cialowicz
Watkins Glen State Park is the most famous of the Finger Lakes State Parks, with a reputation for leaving visitors spellbound. Within two miles, the glen's stream descends 400 feet past cliffs, generating 19 waterfalls along its course.
Maybe on Oregon coastline, too? Glass Beach is a beach in MacKerricher State Park near Fort Bragg, California that is abundant in sea glass created from years of dumping garbage into an area of coastline near the northern part of the town.