Less than an hour up Airport Road, these 800 acres of buried escarpment are the stuff of high school geology lessons. The park is a mix of rocky slabs, verdant hills, and pine and deciduous forests. Lookout Point offers a long vista east over the Caledon Hills. Three picnic spots cater to day trippers. Hikers can get a workout on the park’s hilly network of paths (which connect to the Bruce Trail). Yet Glen Haffy is perhaps best known as a fisher’s paradise. The Toronto and Region Conservation Authority’s fish-rearing facility is located here, and two stocked public trout ponds are jumping (though a two-fish-per-angler rule applies).