Ceallasaigh Beag is a low-lying island in Loch Maddy off North Uist in the Outer Hebrides of Scotland. This an area of shallow lagoons filled and drained by the tides each day. Ceallasaigh Mòr lies to the south and these two islets are connected by a narrow strip of sand during some low tides.The area is c. 46 hectares as measured from Ordnance Survey maps at high tide. Rick Livingstone's Tables of the Islands of Scotland give an area of 55 hectares, which may include land connected at low tide such as the outlying islet of Corr Eilean Keallasay.
Neither Ceallasaigh Mòr nor Ceallasaigh Beag are listed by Hamish Haswell-Smith in his definitive listings of islands greater in size than 40 hectares suggesting that he measured both of them as <40 ha, or that he considered them to be tidal and connected to mainland North Uist.
Wikipedia https://en.wikipedia.org/wiki/Ceallasaigh_Beag
Address HS6 5, United Kingdom
Coordinates 57°37'35.549" N -7°9'58.431" E