A:
The best Underground Tours in Niagara Falls & Around according to Viator travelers are:
- Niagara Falls in 1 Day: Tour of American and Canadian Sides
- Best of Niagara Falls Canada Small Group Boat and Behind Falls
- Skylon Tower, Niagara Falls Ontario Observation Deck Admission
- Niagara Falls Canadian Side Tour and Maid of the Mist Boat Ride Option
- Niagara Falls: First Boat Cruise & Journey Behind the Falls