Hornsby Mountain Bike Trail

Last updated April 2026

Hornsby Mountain Bike Trail is where kids Sydney-wide trade flat paths for real adventure, winding through towering gum trees and rocky creek crossings on purpose-built single-track. This isn't just a bike ride; it's a mini-expedition where children feel every bump and jump, their tyres kicking up dust as they tackle beginner-friendly rollers and gentle berms designed to build confidence without overwhelming little legs. The trail starts near the old quarry, so the terrain shifts from hard-packed singletrack to loamy turns that change with every season, keeping each ride fresh. At only 2.5 kilometres long it’s the perfect length to hold a six-year-old’s attention before they beg to do it again. For parents, it’s the peace of mind that comes from a trail rated green-to-blue, meaning no unexpected drops or technical features to stress over. **What to Bring** Closed-in shoes are essential—no sandals or crocs. Pack a lightweight helmet you actually check fits snugly. Bring a water bottle that clips to the bike frame because off-bike sipping gets messy. A small backpack lets kids carry their own snacks and keeps adult hands free for bike adjustments. Dress in layers; the trail sits in dappled shade but opens to full sun in sections. **Best Age Range** Best for 5–12 year olds. Younger siblings can ride the easy fire trail that parallels the main loop, giving parents a chance to assess readiness without pressure. **Good to Know** Entry is free. Helmets must be worn—no rentals on site. Parking fills up by 10am on weekends and during school holidays—arrive before 9am to secure a spot. Dogs are banned except assistance animals. The trail is closed after rain until the surface dries, usually within 24 hours. **Nearby** Glenorie Park playground in Glenorie, Sydney offers a huge flying fox and picnic shelters five minutes north. For a post-ride cool-down, the splash pad at Bobbin Head in Ku-ring-gai Chase National Park is 12 minutes away. **Tips From Other Parents** Go early on weekends—it gets packed by 10am and the best berms feel more crowded than a school canteen. Bring a spare change of clothes; kids always end up with muddy knees or a wet shoe after creek crossings. Use the big wooden board at the start as a timing line—kids love racing each other over the short distance.