Apparently some members of the basking shark family, the world's second largest fish, come to Scotland , in general, and the small islands off Mull and Skye, in particular, to use the seas for courtship. Then they migrate to warmer waters around Madeira and the Canary Islands. The BBC website provides some background details of the location for foreplay and leaping above the surface.
Scottish Islands Explorer - another form of exploration in the vicinity
Digital Edition: travels from the west of Scotland to west of Africa quickly