When Does Wonderland Open 2025. Saturday, may 25, 2025 get back to outdoor, poolside fun at canada’s wonderland! If you've been waiting on baited breath for the epic theme park to announce when it'll finally be open, today is your day:
Canada’s wonderland will officially open on friday may 3, 2025, just two and a half months from now. I’m coming in from japan from april 30th to probably may 5th.