Thanks very much guys for the good discussion.
Originally Posted by chephy
The masochists, however, (and by that I mean anyone who actively seeks out hills to climb on a bike) must think the escarpment area around Milton is biking heaven! Such unbelievably wonderful concentration of pain!

Also subscribing to the hills = bad philosophy, I realized that I should probably start my trip from downsview subway station instead of western lakeshore.
Can I avoid big hills (escarpment) and traffic by going north then west, instead of west then north?