From this
cache site you can clearly see Dunnet Head, the most northerly bit
of land on the British mainland, and The Old Man of Hoy, the famous
stack on the eastern cliffs of the island of Hoy in the
Orkneys.
Murkle was
well known as far back as 1000 AD when the entire area was
controlled by the Vikings. It's original name was Myrr-kelda which is Norse for "moor well". Through the
ensuing decades its name changed several times as it evolved
through Myrkholl and Myrkol to Murcle (recorded in 1297), Muirkill
(1527) and penultimately Mirekill (1538).