Glenbrook Ravine: 8 years of Stewardship! Dig in, have fun and celebrate! Enjoy family-friendly nature activities, help remove invasive plants and honour 8 years of amazing volunteer action in the ravine. Event Highlights include Invasive Weed Removal and Prizes, Eco-Art activities, Nature Walks and Games. Weed Pull begins at 10 am and Nature Activities begin at 10:30 am.