The lookout must be actually looking over something. There are tons of beautiful views of waterfalls, ridges, or lakes, but they aren't considered lookouts for this list.
If a lookout is better fit for another top 10 list, it will be put in the one best fit (i.e. Aguasabon Falls is a scenic lookout, but it would be in the top 10 falls list).
For more in-depth information about any of these parks, click on the link for the lookout's corresponding park/reserve.
The list is ever-changing, so new lookouts may be added if a spot on the list is worthy of it. The tenth best lookout is at the top, the best is at the bottom.
Starting off the list strong with the Stormy Lake Lookout at Restoule P.P. As part of the moderate 4km Fire Tower Trail, it makes a wonderous addition to an already fantastic trail. The trail traverses up the park's highest bluff, with scenic stops along the way. Firstly, it passes through a planted red pine forest, with perfect straight trees and a thin forest floor. Right before climbing upwards, there is a viewing deck over peaceful Amber Lake, great for birding. And one final pitstop before the lookout is the fire tower itself. Although it is unsuitable for climbing, you can walk by the historic structure, and see it from below when paddling on Stormy Lake (or hiking the Rangers Point Trail).
But most importantly, the lookout. Exposed rock holds strong on the edge of Stormy Lake, offering views for kilometres. The round rocks right near the viewpoint make for a truly perfect picnicking area.
The area between Parry Sound and Sudbury is known for being Ontario's gateway to the north, and this view exemplifies nearly all that makes the Ontarian north so unique, beautiful, and special.
Provincial parks are named in two main ways. Firstly, after their most beautiful attribute - Kakabeka Falls, Sleeping Giant, Wasaga Beach, etc. Or their name is a historic French or native word for the area - Killarney, Neys, Rondeau, etc. Rainbow Falls P.P. is an exception. Sure, their waterfalls (pictured right) are incredible, and symbolize a rigidity characteristic of Ontario's north - it's the park's lookouts that are where it's at for me.
Rainbow Falls offers 3 lookout points, being the Superior, Casque Isles, and Back 40 (see this page for more details on the first two), and it's the latter of which that is #9 on this list. You start by hiking through a former campground on the park's eastern side, before diverging up the park's biggest hill, at 382m. There are some sections that you need to climb with a rope, rating the trail as difficult (despite only being 400m). Once complete, you'll be rewarded with a breathtaking view atop a rocky platform - with both Whitesand Lake and Lake Superior visible amongst the trees and dense boreal forest. Worth the effort on the ascent.
Less than 1km east of Finlayson Point Provincial Park lies another premier viewing destination, being Caribou Mountain. It looks over the town of Temagami, as well as the hundreds of lakes dotted throughout the surrounding landscape. Right beside the parking lot is the main lookout platform, being an octagonal deck hanging off the cliff. However, the trail's true highlight is the 30m fire tower that you can climb up to view from an even higher vantage point. On the right is the main deck viewed from atop the tower.
To access it, turn onto O'Connor Dr. from Highway 11, and then hang a right onto Jack Guppy Way. Take this road until it ends at the parking lot. This is fantastic to visit from Finlayson Point, as they are practically across the road from each other. Even better, the lookout is basically road accessible, with a 100m walk hike.
Views like this for this little effort (its even partially wheelchair accessible) are always worth it.
This list's second wheelchair accessible lookout is found ~30 minutes east of Thunder Bay. In the centre of Ontario's "Canyon Country", Ouimet Canyon Provincial Park features a 150m wide gorge, plunging 100m down to the seasonal Gulch Creek. 2 platforms offer 180 degree views of the canyon, Gulch Lake, and Indian Head Rock (pictured right). These platforms mess with your eyesight, as they dangle you above the canyon floor. Looking down at the deck and then over the deck's fence can make your stomach queasy, but the view can surmount any nuisances.
Although the canyon may be reminiscent of one found in Arizona or Texas, the actually flora and fauna of the canyon floor couldn't be farther from it. Due to the canyon's unique climate conditions, Arctic plants that typically grow 1000km farther north can survive in the canyon floor.
Even though canyons aren't totally unique to Ontario (see Eagle Canyon that is up the road from this place), Ouimet Canyon is the most accessible, best protected, and offers some of the province's very best vistas.
Named after the famous ill-fated American ship, the Edmund Fitzgerald Lookout is a wonder.
Firstly, the access. My recommended route is to take the Pancake Falls Trail, looping around to the lookout, before descending to the parking lot. This accesses both the lookout and scenic Pancake Falls, a rugged cascade, offering a spot for a mid-hike swim (pictured top right).
Secondly, the significance. The "pride of the American side" sank in the waters of Lake Superior on November 10, 1975. Everyone on board died, totalling 29 men. The remnants of the ship lie 8km off the shore of the park, and there is a wonderful panel atop the lookout showing precisely where the Edmund Fitzgerald lies.
Alongside the falls and the history, the lookout itself is remarkable. A 180 degree view of northern forests complete with Lake Superior views. What more could you ask for?
At 563m, the Gorge Lookout is part of Ontario's highest cliff with a sheer drop. As visible above, the lookout gets its name from the massive crack in the red rocks, forming the Sleeping Giant's knees.
To access the Gorge Lookout, you must take this route, consisting of a 22km round trip! Starting at the South Kabeyun parking lot in the provincial park, you walk along the Kabeyun Trail for 6km before any divergence. Once at the South Talus Lake turnoff, head right for ~1km. Once there, take the Top of the Giant turnoff to access. This is a 2km black diamond trail. The first lookout you'll reach is the Triangle lookout (see top right), looking up at Thunder Mountain and the Sleeping Giant. Past there, you'll reach the trail's most difficult section, being a 1km stint going straight uphill. Once atop, you'll pass the Tee Harbour Lookout before a flat 2km stretch crossing the Giant's knees. Finally, you will have reached the Gorge Lookout.
As per the viewpoint itself, it's a marvel of nature. Red rocks and sheer cliffs illuminate the foreground, whilst Superior's immensely blue waters and the view of the Thunder Bay colour in the back (see bottom right). This route is worth every ounce of effort to make it happen.
As proven by this list, I full-heartedly believe that Lake Superior is the most beautiful lake in the world, and the provincial park of the same name is no exception. Lake Superior Provincial Park covers a massive 160,810 hectares, with an incredibly wide array of landscapes to enjoy.
However, among all of this variation, there is one clear standout - being the mountain that is Nokomis. It is often ranked among the greatest hikes in the whole country, and it is worthy of that title. Taking a moderate ascent from the beachside parking lot, the trail leads you to two spectacular lookouts. The first looks inland at a nearly endless array of conifers, and is great for working up an appetite for the trail's true highlight. This highlight is main view, around 0.5km past the first lookout, and is pictured above. Standing at over 200m in height, it points you towards Old Woman Bay, featuring a cliff on the left side (with some legends stating you can see the face of an Old Woman in the rocks, thus deriving its name, see right).
Being the moderate hike it is, there is no excuse to not climb Nokomis when visiting Lake Superior (except if you're in a wheelchair lol). I don't just recommend this trail, I mandate it.
The famous Pic Island lookout inspired renowned painter Lawren Harris so much to have him invite other members of his Group of Seven to it. His famous painting (pictured right) has been hung in art galleries and classrooms all around the province. Looking out at Pic Island, the pergola is atop a mountain in an area littered in history - including its time as a Prisoner of War Camp (see here).
You get two options to access the view. The scenic route is to take the Under the Volcano Trail along the shoreline and the Kopa Cove Trail to the summit, offering lake views along the way. This route is rather uncommon and difficult, so most people opt to take the Pic Island Overlook Trail. It follows a radio tower road up the mountain, making the route a moderate 5km walk, or a difficult uphill bike ride.
The pergola makes for scenic photos, and a perfect foreground for Ontario's third best lookout.
Sleeping Giant is a very special place - so special it has two entries on this list. Although less famous than its sister on the same trail (see #5), I'd argue tooth and nail that the Tee Harbour Lookout is more spectacular.
Just like the Gorge Lookout, it is quite the trek to access this view - a 22km round trip on foot (see here). Luckily enough, it is not a boring hike up, featuring many other vistas on the way and beyond. Not only is the Gorge Lookout is about 2km past the Tee Harbour Lookout, but the Sea Lion Lookout (see the image right) is also found along the way. The famous lichen-lined rock is a great way to hold you over before gathering the courage to climb Ontario's highest cliff.
As per the actual lookout, it overlooks Tee Harbour, which gets its name from the peninsula's shape. You can also see the sheer cliffs of Thunder Mountain to your left, and the seemlingly infinite expanse of Lake Superior to your right. And if the sparkly blue waters are enticing you, after visiting the Gorge Lookout, you can climb down and visit Tee Harbour Beach, a beautiful sandy shoreline perfect for a mid-trail dip.
A stunning view and a must-see.
This background image is from the Cup and Saucer lookout, another worthy adversary.
Accessible only by water, the Cliff Top Trail at Bon Echo scales Mazinaw Rock to a panoramic view of eastern Ontario. Platforms with benches at the top make for a great picnic.
After traversing a 9km dirt road through the western Sibley peninsula, you'll be rewarded with a view of Thunder Bay complete with a dangly platform hanging over the cliff.
A much friendlier option to those from the GTA. Located just outside of Hamilton is Spencer Gorge Conservation Area, featuring two impressive waterfalls, and an even more impressive view.
At the end of a moderate 6km trail lies Ontario's greatest view. A stunning rocky platform overlooking kilometres of northeastern Ontarian wilderness. The immensely blue waters make a beautiful contrast with the infinite sea of conifer trees, alongside the white quartzite rock characteristic of the LaCloche Range.
Speaking of the quartzite, any hiker of the Crack Trail will have already been familiar with it when hiking towards the peak. The infamous "scramble" is a 50m section of trail comprised of loose white rocks that forces you to basically crawl up the hill. But it would be a lie to say the trail's end is not worth the climb, as you will be rewarded. Not only the lookout point, but also the trail's namesake, a massive slab of rock with a massive crack you must hike through (pictured right).
If you envy seeing the best view of what Canada's best province has to offer (totally unbiased), please muster up the effort to drive 4 hours from Toronto and hike the 2.5 hour trail. Stunning view in a stunning park.
The colours are by ease of access: red is difficult, yellow is a moderate hike, green is a short walk, and blue is water access only.