I would definitely keep your car while you are in our area - there are so many things in our area that are a bit too far to walk and esp if you are staying in Oak Bay.
It is very easy and there are many very well done tourist maps to do your own "tours" of the area rather than using the Big Bus.
Salt Spring is a great day trip - lots of funky little farm stands, artists homes/shops and wineries, not mention the neat shops to browse in Ganges. Great places to eat as well. Would be a very fun and relaxing day!
- http://saltspringtourism.com, bcferries.com/schedules/…sssb-current.php
Downtown Victoria any evening of the week at that time of the year is fun along the waterfront - there are great walking paths all over and the inner harbour walkway is full of vendors and entertainment.
- www.attractionsvictoria.com, www.victoria.ca, http://britishcolumbia.com/Maps/?id=28
We have many parks including Beacon Hill Park - which is beautiful at that time of year which are all free to visit and walk though at your own pace. Greater Victoria really is the "cities of gardens".
Spend a day or afternoon on the Saanich Peninsula - Sidney, Brentwood Bay and surrounding communities are all a 30-40 min drive from Oak Bay. Sidney is a walking town with lots of great little shops and great restaurants - and I can vouch for that as I live there:) - explorevancouverisland.com/… greatervictoria.com/things-to-do/recreation