A boat floats slowly across a mirror-like lake. Sky and water meet to create a feast for tourists’ eyes. Forests stretch out into the distance. Mountains rise majestically into the distance.
Long ago, people lived in the Pù Chùa Cave in the northern province of Tuyên Quang.
With more than 600 islands around the north and northeast of Bái Tử Long Bay, Vân Đồn District has played a strategic role in the country's history. Trần Mai Hưởng reports.
Scientists have found various traces of early people living 4,000 years ago in some caves in the northern province of Tuyên Quang.