Toronto's favorite green space is a wonderful spot to unfurl a picnic blanket, swim, play tennis, bike around, skate on 14-hectare Grenadier Pond or – in spring – meander through the groves of cherry blossoms donated by the Japanese ambassador in 1959. Several nature walks, workshops and talks are organized by the Nature Centre (https://highparknaturecentre.com) and led by rangers. Shakespeare in High Park has been produced in the park's amphitheater for almost 40 years.
If you have small kids, check out the children's zoo or take a train ride through the park (adult/child $4.50/3.50, 30 minutes, April to October). And be sure to peek into Colborne Lodge, built in 1836 by the Howard family, who donated much of High Park to the city in 1873.
On weekends and holidays from mid-June to early September, bus 30B picks up at High Park subway station and then loops through the park. Otherwise it's a 200m walk from the subway station to the north gates. The 506 High Park streetcar drops off on the eastern side of the park. If you exit the park by Colborne Lodge at the south gates, walk down to Lake Shore Blvd W and catch any eastbound streetcar to downtown.