My father's 87 (born 1935) and walks at a stiff pace roughly 8 to 10 km every morning (leaving at 4 am) on a varying route sometimes with or without farm dogs.
He also maintains a section roughly 20 km in length of a 1,000 km long walking track here in Western Australia. That's edge cleanups, fire safety, hut upkeep, occassional footbridge construction, etc.
I hike a bit (I've done a few big walks in Tasmania and New Zealand, here in Australia .. and various parts of the world in a job related capacity (mapping, suryeying, geophysics, etc)) .. but I'm strictly small beer next to the old fellow.
He also maintains a section roughly 20 km in length of a 1,000 km long walking track here in Western Australia. That's edge cleanups, fire safety, hut upkeep, occassional footbridge construction, etc.
I hike a bit (I've done a few big walks in Tasmania and New Zealand, here in Australia .. and various parts of the world in a job related capacity (mapping, suryeying, geophysics, etc)) .. but I'm strictly small beer next to the old fellow.