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";
Overture the overture were almost interchangeable, with overtures being extracted from operas to serve as stand alone instrumental works, and symphonies were tagged to the front of operas as overtures. With the reform of "opera seria," the overture began to distinguish itself from the symphony, and composers began to link the content of overtures to their operas dramatically and emotionally. Elements from the opera are foreshadowed in the overture, following the reform ideology that the music and every other element on stages serves to enhance the plot. One such overture was that of "La Magnifique" by André-Ernest-Modeste Grétry, in which several