David Dunlap Observatory

Lonely Planet review

Just north of the Toronto city limits, the David Dunlap Observatory,a major player in the cut-throat world of international stargazing, presents introductory talks on modern astronomy, followed by interplanetary voyeurism through Canada's biggest optical telescope (the reflector measures 1.9m). If the skies are clear, tickets are sold on a first-come, first-served basis (cash only). Kids under seven years old aren't permitted for safety reasons.

On some clear-sky nights, the Royal Astronomical Society of Canada brings its own telescopes and sets up informal (and free!) viewing for the public outside, too. To reach the observatory, drive 30 minutes up Bayview Ave past 16th Ave to Hillsview Dr, turn left onto Hillsview Dr and drive 1km west until you see the sinister white dome on your left. Alternatively take the TTC subway north to Finch station. Walk underground to a nearby transit terminal and catch the 91 Bayview bus operated by York Region Transit (905-762-2100, 866-668-3978; www.yorkregiontransit.com). This bus stops on request at Hillsview Dr, from where it's a 1km walk to the observatory. The entire trip costs around C$3 , with a free transfer from the subway station.