Location: Coast and inlets south of Yampi Sound to Cone Bay, islands from Koolan Island north to Macleay Island, west to Bathurst Island, Bayliss Island, and islands in Strickland Bay; inland usually only to the watershed, but they claimed country near Shoal Bay afterward taken by the Worora and the country south to Oobagooma. Some of the people were taken to Beagle Bay where they died. Some mixed blood descendants live in Broome. They were principally a nomadic raft-using people who lived on offshore islands and were friendly with the Djaui and Ongkarango.
Co-ordinates: 123°55'E x 16°25'S
Area: 1,800 sq. m. (4,700 sq. km.)
References: Tindale, 1953 MS; Coate, 1966.
Alternative Names: Umeda, Umidi, Aobidai (of Ongkarango), Umi:da, Oken, Okat, Okwata, O:ka:ta, O:kada (alternative name applied by themselves; used as a language term by the Ongkarango who speak the same language).