Geograph - photograph every grid square

The Isle of Barra (Barraigh) is towards the southern end of the long chain of islands that constitutes the Outer Hebrides. Since 1991 it has been joined by a 200m long causeway to its southern neighbour, Vatersay (Bhatarsaigh) the latter being the southernmost populated island of the archipelago. Beyond Vatersay to the south lie some uninhabited (but mostly formerly inhabited) islands, principal among which are (in order from N to S): Sandray (Sanndraigh), Pabbay (Pabaigh), Mingulay (Miùghlaigh) and finally Berneray (Beàrnaraigh) also known as Barra Head.
Barra is quite a bustling island for its size, having amongst the highest population densities of the outer islands (viz. 20/km² roughly twice that of Lewis with Harris for example). The entirety of this population is situated around the coast or a little way inland along valleys, the centre of the island being mountainous and uninhabited.
One circular road (the A888) forms a circuit around the bulk of the island with a branching minor road heading into the Eoligarry peninsula (where the airport is located, see below) and another spur running south around the perimeter of Beinn Tangabhal to the causeway to Vatersay.
The chief settlement of Castlebay is clearly the hub of the island with schools, shops, hotels, a particularly excellent café ( Link ) and the port as well as Kisimul Castle on its own little islet in the bay, from which the town gets its name.
Barra airport is one of the World's most remarkable - it is situated on the Eoligarry peninsula towards the northern extremity of the island ... and it doesn't have a runway as such. Instead planes land and take off from the expansive beach of Tràigh Mhòr ("Big Beach"). Flight times are therefore dependent on the tide!
Statistics:
Area: 5,875ha (22⅔ miles²) (Scottish island rank: 20th)
Population: 1,174 (2011 census) (Scottish island rank: 13th)
Highest Point: Heaval (Heabhal), 384m (1,259')
Principal settlement: Castlebay (with perhaps a third of the island's population)