We drove while looking at the white mountains, and then we continued along the river for a long time.
We descended from Cusco's altitude of 3300m to 1800m in Abancay, and then we ascended again.
The 3S route that passes through this town is relatively safe, but the owner of the guesthouse in Cusco told me that the area around Andahuaylas to the north is very active in drug trafficking and is dangerous, so it's best to avoid it.
By the way, the cheapest single room is 20 soles (approximately 680 yen), with shared toilet and bath, no breakfast, and no Wi-Fi. The room is small, but the bed is normally clean, so there are no problems.
Some prices in this town are half the price of Cusco.