For those looking for a slightly more rugged but not too challenging trail run, the section of the Bruce Trail close to Niagara Falls is a good option. The trailhead is at Brock’s monument in Queenston Park (intersects with Niagara River Recreational Trail), and heads west. The trail is mainly wooded, and somewhat hilly, with the first elevation change occurring near the 4k mark as you head down the escarpment.
We’ve mapped 5.2 km (3.2 miles) one-way, between Queenston Park and the 405. At the 4 km mark, just south of York Rd., the Bruce Trail intersects with the Laura Secord Trail.
Overall, the Bruce Trail covers some 80 km in the Niagara area, with some sections more appropriate for hiking or trail running. For those wanting to tackle an extensive part of it, this website has a lot of information and extensive maps that can be downloaded. There are also several other trails that intersect or come off the Bruce Trail, especially toward St. Catharines.