Kalliergeia
A very crowded vacation-home-looking spot in Paraitonion
Scans show many hostiles, with both treasures in the largest building.
While there are a lot of them, unless you're coming straight here after Siwa, they'll all be several levels below you, if not dozens. Consider simply storming the place.
Find the first treasure in a pouch by a fallen civilian on the ground floor of the larger building.
The other is up on the roof.
Claiming it completes the location.