I find walking is good, even if it tires me out. I just have to rest frequently along the way. I recently did 8 days walking in Ennis, & Galway, Ireland during the Galway Arts Festival and had to rest quite often, but enjoyed what I could while I was there. My family was usually a block or 2 ahead of me, and just waited until I caught up with them. Sometimes I had to call it quits and go back to the rooms to rest & elevate my feet, leaving them to continue- and see me later in the day or evening. We'd make a time to rendezvous or call on the cell phone (we bought one in Ireland- It was free, with buying 60 euro worth of phone time, and turned on an existing one for international coverage, thru AT&T - highly recommended to have working cells in Europe).
I just did what I could.
Hiking may not be in your cards, lefthanded, we all have to make concessions because of this disease, but we can live as normal lives as possible, if we know our limitations.