Frost clings heavily to trees on the top of Mau Son mountain on February 20 morning. Photo: Hoang Lang Huy

Frost covers the Mau Son mount.

Many tourists visit the Mau Son mount to experience the freezing weather phenomenon.

From early Sunday morning, Phia Oac peak, belonging to Phia Oac - Phia Den National Park in Cao Bang province, also saw dense frost when the temperature drops below 0 degrees Celsius. Tree branches and grass are covered in layers of ice. Photo: VNA

Thick frost covers the high mountains of Phia Oac

In Xin Cai, Meo Vac district, Ha Giang province, the temperature drops below 0 degrees Celsius and frost is seen in the area. Photo: laodong.vn

Frost covers everywhere, from the treetops to all the rocks in Dong Van Karst Plateau. Photo: laodong.vn

Frost covers the grass. Photo: dangcongsan.vn

Crops are under layers of frost. Photo: dangcongsan.vn

Peach and plum blossoms are covered in thick frost. Photo: dangcongsan.vn

Pine trees in Ha Giang are thickly covered in frost. Photo: dangcongsan.vn

Snow covers tree tops in Cao Son flower garden, Dong Van commune, Binh Lieu district, Quang Ninh province. Photo: daidoanket.vn