No water park ๐. But ride the Maid of the Mist if you want to get wet.
Hi Mary! Once you check the Falls off your list, you can explore beyond the Falls and visit attractions like Aquarium of Niagara, Escape Room Niagara, Niagara Power Vista, Old Fort Niagara (this attraction is located within a State Park and there is pool here for a small fee), high-speed jet boats, Herschell Carrousel Factory Museum, Olcott Beach Carousel Park, hiking trails, and more. Visit niagarafallsusa.com or call 1-877 FALLS US to chat with a local expert.
There's also an arcade and an aquarium type of place in the area. The kids will like that too.
In my opinion not a great destination for young kids, teens seem to have more interest
You can travel to the Old Fort. There's a free shuttle that travels around the city and towards the fort every 40mins. These shuttles can be tracked live through their app and website
There is no water park that I seen. There are activities like the maid of the mist, cave of winds and a lookout tower which you can google and see what they are. Not any amusement style rides or kid based activities. Lots of gift shops.
No waterpark
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