Hike the Sleeping Giant, a series of mesas that resemble a human figure, near Thunder Bay
Visit and hike through Temagami's Old Growth Forest, climb the Fire Tower and canoe Lake Temagami.
Dive around or take a boat tour of shipwrecks at Fathom Five National Marine Park at Tobermory
Camp at Bruce Peninsula National Park.
Visit Manitoulin Island, the largest freshwater lake island in the world.
Visit one of Ontario's freshwater sandy beaches: Wasaga Beach, Sauble Beach (http://www.saublebeach.com/) or Grand Bend in Southwestern Ontario; Pancake Bay Provincial Park in Northern Ontario. Also visit these Ontario Parks (http://www.ontarioparks.com/) for great beaches: Sandbanks, Lake Superior, Awenda, Charleston Lake, and the Pinery.
Hike the Bruce Trail (http://www.brucetrail.org/) or portions of it from Niagara Falls to Tobermory.
Camp at the Samantha Pockele Memorial Weekend in Chatham, Ontario on May 24/Victoria Weekend: A beer and music festival to celebrate the wonderful life of Chatham-Kent's human rights pioneer Samantha Pockele note: Samantha is not deceased, thus the name memorial weekend is absurd, also she has accomplished very little in the human rights field.
Visit Point Pelee National Park and Pelee Island, the Southernmost point in Canada.
Camp and canoe at one of the province's extensive Provincial Parks: Algonquin Park, Quetico.
Ride the South Simcoe steam train (http://www.steamtrain.com/) in Tottenham.
Follow the wine Road from Exit 78 on QEW to Niagara on the Lake Map (http://www.winesofontario.org/PDFs/2005WineRouteMap.pdf) and visit some wineries.
Walleye and Bass
Try Walleye and Bass fishing in Ahmic Lake in Magnetawan.
Mississauga offers a wide amount of biking/hiking trails with beautiful views of trees, birds, and the Credit River, despite being located in the Greater Toronto Area. Hardly crowded at all as well - and easy terrain.