Whitewall is less than about 20 km down the road from the border with Sartar. Not a long way – the place is basically just over the border.
Long an important holy site, Whitewall is ruins after more than two years of Lunar siege and the terrible assault in 1621. The fortifications are badly damaged, many temples and buildings destroyed. The great white rock is still sacred to Orlanth, and a new town has formed at the base of the old fortress-temple.
From Whitewall it is only some 60 km along the trade road to Karse. Again not very far. This wide (roughly 30 km wide) valley is settled farmlands, probably twice as densely populated as Sartar. The locals are culturally indistinguishable from the Sartarites, speaking the same language, worshiping the same gods, etc.
At the end of the trade road is Karse, a busy little port city where pretty much all trade to and from Peloria gets transshipped, primary to Nochet.
This area is well tied into both Sartar and Esrolia by trade, but culturally is the same as Sartarite. And again these distances are not much. You can get from Karse to Nochet in a day.