There are many ways to view and experience Niagara Falls. However, there are two sides, the American and Canadian. If you want to view the falls from Canada (and the border is open) you must have an up to date passport or enhanced license to cross the border. Also, check in advance the proper covid testing documentation needed to cross and return.
If you visit Niagara Falls at night you can experience the entire falls illuminated in various colors.
If you do venture into Canada to view the falls, Niagara On The Lake is a charming town. It's a great place to walk around and visit local boutiques, art galleries, and vineyards.
If you plan on having any chicken wings while in Buffalo, Duff's is a must (there is more than one location, the original is on Sheridan but the Depew location is 15 minute drive from the venue).
There are many activities from kayak tours to zip-lining through Labatt Blue painted silos.