Alright, so this will be my third or fourth time rolling through Portland, but will probably the first time I actually I have my bike with me. So, where's the good riding?

It looks like River City Bikes runs a shop ride on Sunday mornings, which I'll probably check out, but that leaves me with Saturday afternoon and potentially Monday morning free for exploration. Any suggestions from the locals?

Alternatively, if anybody's willing to play host to an introverted visitor for a couple of hours, I'll buy the mid-ride break coffee/beer.