Na Tenh Pass: a gentle adventure in northern Vietnam 29 October 2023 bwsadmin News Travel Vietnam In the northernmost province of Cao Bang, there lies a gem called the Na Tenh Pass, featuring 20 bends and a wealth of serene landscape. Source: VNExpress International, https://e.vnexpress.net/photo/places/na-tenh-pass-a-gentle-adventure-in-northern-vietnam-4668071.html