Fingal's Cave a walkway just above high-water level permitting exploration on foot. From the inside, the entrance seems to frame the island of Iona across the water. Romantic composer Felix Mendelssohn visited in 1829 and wrote an overture, "The Hebrides", Op. 26, (also known as "Fingal's Cave overture"), inspired by the weird echoes in the cave. Mendelssohn's overture popularized the cave as a tourist destination. Other famous 19th-century visitors included author Jules Verne, who used it in his book "Le Rayon Vert" ("The Green Ray"), and mentions it in the novels "Journey to the Center of the Earth" and "The Mysterious Island";
Hebrides Hebrides and Outer Hebrides. The Scottish Gaelic language arrived via Ireland due to the growing influence of the kingdom of Dál Riata from the 6th century AD onwards, and became the dominant language of the southern Hebrides at that time. For a few centuries, the military might of the ' meant that Old Norse was prevalent in the Hebrides. North of , the place names that existed prior to the 9th century have been all but obliterated. The Old Norse name for the Hebrides during the Viking occupation was ', which means "Southern Isles"; in contrast to the ", or