Here is the link to
BCRV Park, that dom101 mentioned. You would have to contact them to see if they have storage for the time that you need.
It is an excellent park for sightseeing/shopping in the Vancouver area.
Ken
2006 Winnebago Outlook 29B E-450.
2012 Honda CR-V AWD
Blue Ox Aventa LX tow bar and Brake Buddy Vantage.