September is wonderful around here - the weather often seems designed to frustrate the kids who have to return to school.
In the greater Vancouver area alone there are hundreds of opportunities for hiking - from the North Shore mountains through the Fraser Valley and all the various waterfront areas.
The ferries to the Gulf Islands and Vancouver Island aren't inexpensive, but if you aren't commuting frequently they are well worth it.
You shouldn't hesitate to contact us locals ahead of time - for a meet up and some showing around.
And if you like trees and forests ...