https://www.newsweek.com/archaeologists-discover-ancient-egyptian-pharaoh-fortified-royal-retreat-1897225
Nice for some....
It seems unlikely that it was a retreat in the conventional sense of the word - i.e. somewhere you go for rest and recouperation. Nobody goes to the North Sinai for that ...
More likely to have been the opposite - somewhere the pharaoh was based when attacking.
Also a good shout