Tanka people
The Tankas (simplified Chinese: 疍家; traditional Chinese: 蜑家; pinyin: Dànjiā; Jyutping: daan6 gaa1) or boat people are an ethnic subgroup in Southern China who have traditionally lived on junks in coastal parts of Guangdong, Guangxi, Fujian, Hainan, and Zhejiang provinces, as well as Hong Kong and Macau. Though many now live onshore, some from the older generations still live on their narrow boats and pursue their traditional livelihood of fishing. Historically, the Tankas were considered to be outcasts. Since they were boat people who lived by the sea, they were sometimes referred to as "sea gypsies" by the Chinese and British. Tanka origins can be traced back to the native ethnic minorities of southern China who may have taken refuge on the sea and gradually assimilated into Han culture. However, Tanka have preserved many of their native traditions that are not found in Han Chinese culture.
A small number of Tankas also live in parts of Vietnam. There they are called Dan (Đàn) and are classified as a subgroup of the Ngái ethnicity.