The "Thang Thang" Tree presents in the heart of Ha Long Bay
Every early summer, across the rocky islands of Ha Long Bay, such as Đầu Gỗ, Soi Sim, Bồ Hòn, Vông Viêng, Trà Sản, and Cống Đỏ-the hillsides come alive as Thang Thang trees (also known locally as Sảng) begin a new season of budding and blossoming.