Marineland, is a themed zoo and amusement park in Niagara Falls, Ontario, Canada. The park has performing marine animal shows, exhibits of marine and land animals, and amusement rides. It keeps dolphins, sea lions, and beluga whales. Until 2023, the park also kept walruses and orcas. The park also keeps bears, deer, and other land animals. It was founded and operated by John Holer, a Slovenian immigrant, from 1961 until his death in 2018. It is privately owned and operated by his family.

Niagara Falls is a city in Ontario, Canada. It is on the western bank of the Niagara River in the Golden Horseshoe region of Southern Ontario, with a population of 94,415 at the 2021 census. It is part of the St. Catharines - Niagara Census Metropolitan Area (CMA). Incorporated on 12 June 1903, the city is across the river from Niagara Falls, New York. The Niagara River flows over Niagara Falls at this location, creating a natural spectacle which attracts millions of tourists each year.