marathon runner and was pretty fit up until my 60's,
my best time was 3.07. In 1989 I did a solo driving
marathon around the 4 lighthouses, Reinga, East Cape,
Palliser and Egmont, 3,500 kms in 50 odd hours and
was fine the next day. Wednesdays trip left me wiped
out for 24 hours and it was only 8 hours and 9,000 steps
but the photography was worth it!