The first thing that hits you is not the view but the sound — a low, continuous growl that gets under your skin and asks you to pay attention. You step out of the air-conditioned van at the Aquarium of Niagara and walk toward the rim of the gorge; spray and a cooling wind push across your face as Prospect Point opens like a stage. On this compact, three-and-a-half-hour circuit you meet Niagara in its most dramatic forms: the Maid of the Mist drawing you close to Horseshoe Falls, the elevator dropping you toward the gorge, and the wooden walkways of Cave of the Winds where water dares you to stand within arm’s reach of Bridal Veil Falls.