It's safe to say it's hard to replicate the experience of flying over the falls without booking a helicopter tour. It's an awesome experience, though $165 may seem like a lot of cash for an 11-14 minutes ride.
An elevator takes you 175 feet down to a walkway that leads you right to the bottom of the Bridal Veil Falls. You will definitely get a feel for the true power of the falls! This is the closest you can get to the falls on either side without actually leaping into them! Ponchos and sandals are provided, and you will definitely need them.
Prospect Point
This is not a large aquarium by any means, but it's a long-standing and beloved attraction. In 2024, the aquarium expanded (across the lovely green space that used to be the four-lane Robert Moses State Parkway) to the former Niagara Gorge Discovery Center. The new expansion is called Great Lakes 360 and focuses on the ecology of the Niagara River and Great Lakes.
The former U.S. custom house (1863-1962) is now a museum dedicated to the Niagara Frontier's Underground Railroad history. Exhibits include a recreation of the "Cataract House", one of the largest hotels in Niagara Falls at the time whose largely African-American waitstaff was instrumental in helping escaped slaves on the last leg of their journey.