Great Wolf Lodge in Niagara Falls, Ontario has a massive indoor water park — Seneca Niagara Resort's indoor pool doesn't compare

If indoor water fun is the goal, the Great Wolf Lodge on the Canadian side is the real draw — a huge indoor water park with slides and splash areas for kids. On the American side, Seneca Niagara Resort & Casino has a large indoor pool, but it’s not in the same league. Cross the bridge for this one.