It is pretty physically and mentally challenging to be outside, in motion, on twisty roads, all day every day. My body is tired, the eating hours are all weird. But
Long day riding, 10am to 7pm with some snack stops.
The region is Somiedo and it really promotes bicycling. They made use of an old road bed when constructing a brand new highway, so they now have a bike trail and rentals and such. I’m still in constant amazement at the road building here!