Ich war nie auf der US-Seite der Fälle. Aber ich meine schon, dass die Kanadische Seite sehenswerter ist. Die US-Seite ist viel weniger besucht.

Yes, you need passport! Enjoy

Yes you can. Boats tour the falls from both the American (Niagara Falls) and Canadian (Horseshoe Falls). There are also some really nice outlooks on both sides and a walking tour that goes behind the falls.

You may get discounts from hotel or tour operators, best to avoid online purchase unless you see a discount or promotion

I say do everything you possibly can. It may be a once in a lifetime experience jam pack as much in as possible. I LOVED Niagara Falls. We stayed on Canadian side.

You can book ahead, but you can also get discounts available at most hotels...when we have gone, we never prebooked and had no problem getting into or on any attractions...May should be a good time, before the huge summer influx of visitors (my husband and myself grew up very close to Niagara Falls and visited frequently for years) Have a great vacation!

Yes. It will be tight but doable. Toronto is a little over an hour and a half drive (but I drive fast) so plan on 3 1/2-4 hours on the road. That leaves plenty of time to view the falls. It will be worth the time. Enjoy!

You make a reservation and grab an appetizer or whatever you want at Elements Restaurant which has the best view of the falls in my opinion and it's free parking once you go to the restaurant.Tell them you have a reservation when you speak to the parking attendant and it's free.This way you avoid an unnecessary $20 parking fee and you get food that is reasonably priced and an awesome view plus free parking!The name of the parking slot for the Elements Restaurant is Table Rock Center the closest to the falls,a $20 parking lot that us FREE when you make reservation at Elements Restaurant.Hope this helps!