If you're not familiar with Vancouver, here are links to maps that'll give you an idea of how things are laid out:

Downtown Vancouver: http://www.discovervancouver.com/maps/downtown_vancouver_map.asp

Gastown: http://www.tourdegastown.com/course_map_lg.shtml

Granville Island: http://www.discovervancouver.com/maps/granville_island_map.asp

Stanley Park: http://www.discovervancouver.com/maps/stanley_park_map.asp