In the end, Tom Robbins may be right about blackberries.
The woman who checked me into the hotel at SEA-TAC pointed me down the hill to the DesMoines Creek Park trail to get in my daily 5K. Lovely run, except for the almost 250′ of climbing over a quarter mile between the hotel and the trailhead.
Nice paved bike path type trail; not a whole lot of people, but a ton of beautiful ripe blackberries sitting there waiting to be eaten. Made me happy.
Ankle felt good. Slow and steady.