My goal today was to get far enough to see the water, back pain be damned.
Edit: Damn that back pain! A 2.3 mile walk should be nothing at all for me. I had to stop and sit down three times. The bad part about having to stop and sit is that there's not always a place to do it. I think I'll keep doing yoga videos specifically for the back, walking once each week to see if there's any progress. I want days where I walk to be at least four miles with no need to stop.