Habitat 67, Standing wave surf break on the Saint Lawrence River in Montreal, Canada.

Habitat 67 is a standing wave in the Lachine Rapids of the Saint Lawrence River, named after the adjacent Habitat 67 housing complex. Fast water hitting submerged boulders creates a break that can reach 2 metres (6 ft 7 in) in height. Kayakers and river surfers ride its foamy white crest.

Olympic kayaker Corran Addison pioneered river surfing at this wave in 2002, establishing one of the first surf schools dedicated to river sports and teaching over 3,500 students since 2005, helping transform the location into a recognized spot within the international river surfing community.

The wave takes its name from the neighbouring Habitat 67 housing complex. Corran Addison, an Olympic kayaker and three-time world freestyle kayak champion, first surfed it in 2002; his school Imagine Surfboards has taught 3,500 students since 2005, and the KSF school has hosted 1,500 students a year since 2003. From fewer than ten original surfers, around 500 now ride here, sharing the water with kayakers.

The wave is accessible from 2600 Avenue Pierre-Dupuy via a trail starting from the park beside Habitat 67, and surfers should wear protective footwear, use boards shorter than 7 feet 2 inches (2.2 meters), and have strong swimming skills due to swift currents and potential hazards including whirlpools.

Unlike ocean surf breaks, this wave maintains consistent surfable conditions throughout most of the year with river flows averaging around 254,400 cubic feet per second (7,200 cubic meters per second), offering an urban surfing experience set against the backdrop of Montreal's downtown skyline and innovative architecture.