Montreal's Jardin botanique is the rare botanical garden that earns the word "great" — laid out from 1931 by Brother Marie-Victorin, second in size only to Kew's reputation among the world's, and built around two cultural gardens most cities would kill for. This is the slow walk: a morning inside the planted world, then out into the loose park beside it.
Start up from Pie-IX and pay the fee without grumbling. The Jardin de Chine, built with Shanghai in the 1990s, is the largest Chinese garden outside China — pavilions, ink-dark rock, water. The Jardin japonais answers it across the grounds with a tea pavilion and a bonsai collection that genuinely stops people. The rebuilt Insectarium is worth the detour if insects don't put you off; the butterfly dome is the payoff.
Then the view that no flower can match — the leaning Tour de Montréal rising straight over the treetops, the city's oddest landmark above its calmest acres. Drift out the far side into Parc Maisonneuve, all open lawn after the garden's precision, and across it to Viau. Composed, then unbuttoned: the right order to walk it.