@TheBreadmonkey That is too many miles.
@[email protected] @[email protected] As a Brit who's had to adapt to Italian temperatures: yeah, that's probably too much unless you're both used to it and have a lot of shade. 10 miles with a long break in the shade after lunch is more realistic. Also, even for much shorter walks at that temp you'll want lots and lots of water with you (750ml - 1l of water per hour you're walking).