Dudley,
I have had to use two walking sticks to "stay in the outdoors" due to illness, and have found something that goes from cane to walking stick height (and back) in a few seconds. Strong, light and versatile, it is called the Explorer Monopod from a manufacturer called Stoney Point. Been using them every day for 5 years, and have yet to find anything as versatile. Has a neoprene grip and removable wood knob on top (and double as camera monopod), carbide tip for ice, rubber tip for hard surfaces, and rubber snow basket that can be slipped over the end. They can be found a lot of places (Cabela's, Gander Mtn, etc.) but I've tracked down a source that is offer a much better price. If you want to try them, I'd be glad to send you an internet link...
Daryl Harding