This is wisdom.
Don't laugh, but I have thought about walking staffs for survival. Years and years in the BSA proved to me what a friend a staff can be. SO, what if a man were to make a staff from heavy walled PVC and stash a really slim fishing rod in it?? I don't know how clumsy a capped [both ends] PVC pipe would be.
My current staff, a 7ft (!*!) ash that I have tapered on one end to take a frog gig/fish spear, or an attachment I made that lets me use it like a cane pole. Feeling is severely limited due to it's rigidity, but hey it'll work.
(!*!) Special note for any who have no bad "walking stick" experience. If your walking stick/staff is not taller than you, you're begging for impalement. Trust me, I've seen it on a 20 mile hike around Virgin Falls. It also limits it's alternative uses.