Cát Hải

Etymology
. Cát Bà is the largest island of the district.


 * According to folk etymology, Cát Bà is a "misread" of . During the Dynasty, the women here took care of the logistics for the men to fight during the war. This is very unlikely, since this place is in Northern Vietnam, where there the coda  merger never happened, unlike placenames like  (which is probably indeed ) in Southern Vietnam, where this merger did actually occur.
 * Compared to the nearby island named . Possibly modelled after the false "etymology" above.

Proper noun

 * , includes the archipelago and the  archipelago