Commonly known as "Canada's Waterfalls Park", Wells Gray is a large park in British Columbia where you can truly escape into the natural world without having to wear out a pair of hiking boots. Far enough away from major cities that it isn't heavily trod by the usual tourists (about 500 km/310 miles north of Vancouver), you'll find a number of mountain ranges that top out under 3,000 meters high and a bevy of the aforementioned waterfalls all within short to moderate hiking distance from access roads.
Most of the park's highlights can be seen off of Clearwater Valley Road, reached via Yellowhead Highway, including the most popular draw, Helmcken Falls. This 141 meter (463 foot) falls is worth it alone to get this far off the beaten path, although the more adventurous can follow the Murtle River upstream to view a handful of other waterfalls that are at least 20 meters high.
Whitewater enthusiasts should head to Clearwater River, which is accessed by the road of the same name. With rapids that go by "Shark's Tooth" and "Tsunami" over about 26 km (16 miles) of river, you'll no doubt be jacked up on adrenaline and doused with spray by the time your done. For those who enjoy the more leisurely side of nature, camping and canoeing can be had at Clearwater Lake, an idyllic setting fringed by low-lying mountains.
This is just the tip of the iceberg. For more information on sights worth seeing in Wells Gray Provincial Park, visit the associated website.