STO buses cover Gatineau and connect with Ottawa's OC Transpo network, but routes can feel indirect if you are moving between sectors. A car is useful for Gatineau Park, Aylmer, and anything beyond the riverfront core.
Cycling is one of the best ways to enjoy the city in good weather. Multi-use paths run along the Ottawa River and connect Hull, Aylmer, bridges to Ottawa, and park approaches.