Oakville is located between Toronto and Hamilton directly on Lake Ontario. Oakville is a wealthy town which preserved many good things from the past. You will not become aware of this if you travel on the "QEW" - you must visit the city.
Oakville has a variety of interesting museums. Please get a free of charge visitors guide and check especially for events. I believe that almost everybody will find things in which he is interested.
Also galleries attract many visitors interested in art.
Oakville is also attracting potential shoppers as I learned by watching Elizabeth, my wife. Sometimes I think she and her mom are "born to shop". I only go shopping when I need something - for them it is entertainment.
If we go together I am normally rewarded after a more or less successful shopping tour with a good meal in a restaurant. This happened also in Oakville.

Downtown Oakville is really attractive

Oakville has a beautiful beach.
Don't miss to go there - not necessarily for swimming but for a walk and to take pictures.

Oakville is located in the heart of the so called "Halton Region" with all its conservation areas:

Hopefully you have enough time to visit at least a few of them.
We always advise visitors to use Highway 2 when they have to travel between Oakville and Burlington. Just watch the houses on the lake front! Many of our European friends wanted to live like that in Canada!