Being from Alaska, I do not like heat.
This summer is the first time I've experienced 90 degrees in 24 years.
So I bike in low gear at dawn when it is typically in the 60s.
And I solo canoe, checking out potential waterfowl hunting spots.
And reverse lunges every other morning.
I still hike at least once a week, starting at 4am, finishing up at 9am.
That keeps my feet tough and hiking with a pack i hunt with.
"Maintenance mode".
The nice thing about the mountain west, even if it peaks 100 degrees in late afternoon,
the early mornings are typically in the 60s.