Since research in the Hebrides began 20 years ago, 24 different species of cetaceans (which include whales, dolphins and porpoises) have been recorded. Simply put, Scotland’s western waters are teeming with marine life. Being the Inner Hebrides’ second-largest and most accessible island, Mull is one of the best places for spotting the region’s watery wildlife. It doesn’t matter when you visit Mull, either, as you can spot at least a generous handful at any time of year. The island’s harbour porpoises and bottlenose dolphins are year-round residents, while minke whales (April-September), orcas (also year-round) and basking sharks (May-October) are just three other species you can spot off Mull’s shores. Its ‘capital’, Tobermory, is the ideal place to start, with a number of boat trips (ranging from hour-long cruises to week-long liveaboard excursions) offered to spot this wealth of sea life.