This weekend there is the startup of the shuttle bus around the park. Takes 45 mins and picks up every 15 from a number of locations. You can get off and on all day. So get to the park...not all that far to walk from Canada Place and do the shuttle.
The shuttle runs everyday. It was a great way to see Stanley Park. There is also the grey line tours which runs all over Vancouver and also allows you to hop on and off at will. Of course it does cost to take that but it is a two day ticket.
Have fun .. we loved Vancouver.