Fall in Northern Ontario is brilliant but brutally short — a few weeks of colour before the snow shows up. The upside is that once Labour Day passes, some of the province's best adventure terrain empties out entirely. Northeastern Ontario sits within a half-day drive of both Toronto and Ottawa, and it packs in mountain biking, legendary canoe tripping, boreal forest hiking and freshwater island beaches.

Start with the biking. Sudbury's unusual geology — all rock barrens and ridge lines — has made it a genuine mountain bike hub. Kivi Park in the city's south end keeps over 15 kilometres of trails running with rentals on site, and the 10-kilometre Lake Laurentian Loop sits minutes from downtown. The Walden Mountain Bike Club maintains rock-and-boreal trails worth the detour. North Bay has built its own scene too: the North Bay Mountain Bike Association's Three Towers network offers 13 kilometres of purpose-built single-track, including flow lines, downhills and natural rock berms.

For paddlers, Temagami is the heavyweight. Thousands of kilometres of canoe routes wind through old-growth pine country, and the flagship trip is Maple Mountain in Lady Evelyn-Smoothwater Provincial Park — one of Ontario's highest points. It's a serious outing: allow at least a week, launching from Mowat's Landing off Highway 559 west of Temiskaming Shores, crossing the island-studded Lady Evelyn Lake, then hiking three kilometres to the summit from Tupper Lake. Smoothwater Outfitters and Temagami Outfitting Co. handle canoe rentals and vehicle shuttles, while Lakeland Airways can fly you in.

Timmins works well as a boreal base. Hersey Lake Conservation Area, minutes from downtown, has 12 kilometres of gentle single-track through jack pine, open to hikers and runners too. East of the city, Kettle Lakes Provincial Park protects a cluster of Ice Age kettle lakes with four hiking trails, 12 kilometres of bike routes and camping available until mid-October. Cedar Meadows Resort and Spa adds a wildlife park and a step up in comfort.

Then there's Manitoulin — the world's largest freshwater island — which goes quiet after the summer crowds leave. Base yourself at Manitoulin Eco Park, an international Dark Sky Preserve with wooded campsites, cabins and tipis, and explore the backroads by gravel or road bike. The new North Channel Bike Park brings Euro-style gravity trails for all skill levels with on-site rentals. The Cup and Saucer Trail on Highway 540 makes a great day hike, and Providence Bay's two-kilometre sand beach is all yours in September. The island's hardwood colour peaks from late September, and you can reach it via Highway 6 from Espanola or aboard the MS Chi-Cheemaun ferry from the Bruce Peninsula, which runs until October 18.

Who's this for? Anyone who wants peak colour without peak crowds — self-sufficient couples, weekend riders from Toronto or Ottawa, and paddlers willing to trade a week of holiday for one of Ontario's classic wilderness routes. Book ferries and park campsites early in the season; October closes most doors fast.