Grouse Grind Opening Date 2025 Dates. These dates are subject to change at grouse mountain's discretion based on. This weekend, the grind’s daily hours will be 7.

25,162 likes · 20 talking about this · 29,143 were here. With the grouse grind officially open from 7am on april 27, participants in grouse mountain’s 2025 grind run series will now be able to add the challenging hike into their.