
Lenin Stream, Karl Marx Peak, Cốc Bó cave
The heart of the site is Lenin Stream, jade-clear beneath Karl Marx Peak — home of Cao Bằng’s most beautiful photographs. Upstream lies Cốc Bó cave with its plain stone bed, the “wobbly stone table” where Party history was translated, and border marker 108 where the leader first stepped home.
Do not skip the Khuổi Nặm hut and the bamboo grove — the full loop takes half a morning on paved paths, easy even for older guests.
