The Orasaigh which I did visit is an oval shaped island about 900 metres from east to west and 500 metres from north to south and which rises to a height of 38 metres above sea level. It is separated from Barra by a stretch of water known as Caolas Orasaigh at high tide and about 300 metres of silver sand beach at low tide. The sand is obviously firm, as there were several vehicles out on it and several people cockle picking. There was a shallow stream to cross.
The island didn't seem to be grazed when I visited in mid June 2016. Wildflowers were in abundance: yellow iris, orchids, bog asphodel, milkwort, butterwort, buttercups, kidney vetch, birds foot trefoil, thrift, thyme, cotton-grass and tormentil. The top of the island had some heather but the rest of the island is covered in rough grass.
Looking north up the west coast
Looking south west towards the airport
Barra from Orasaigh across Caolas Orasaigh
Small cairn on the top of Orasaigh
Natural standing stone on the top of the island looking north west towards Barra
Cockle pickers out on Traigh Mhor
I presume this beacon is some kind of navigation light for the airport