One of the great things about the airports on Hebridean islands is that you can check in, then if there is a bit of a wait, go to the beach. Islay is good for this (a cracking beach a mile from the airport); and Barra is even more convenient, as the beach is also the runway.
Here's one example of a near-airport beach on the island of Benbecula. This island is quite small and flat, so it's easy to get around:
The airport at Balivanich is relatively big for out here, as it serves the nearby military base as well. It's also our "local" airport for Berneray, being about a 40 minute drive away.
Here's another picture of the same beach, taken from a bit further back:
Thanks to Ian JC for the pictures.