Early this morning Heritage Discoverer anchors off the Calf of Man, a remote, windswept, tiny wild isle surrounded by tempestuous waters and fortress-like cliffs situated off the southern tip of the Isle of Man. A protected reserve, the 600 acre island is overseen by Manx National Heritage and is the location of the Calf of Man Bird Observatory and an important conservation effort. Its surrounding waters are of international importance for seabirds, around 33 species nest on its towering banded cliffs, including Manx Shearwaters, Kittiwakes, Razorbills, Puffins and Guillemots, and marine mammals, including Grey and Common Seals, whales, dolphins and porpoises, can be found in nearby waters. It is also a popular stop on the flight path of thousands of migratory birds. Here, you Zodiac cruise the coastline and stretch your legs on clifftop walks, exploring seal colonies and historic 19th-century lighthouses, learning about the ongoing protection and conservation of the Isle. If you are lucky, you may also see some of the small flock of Manx Loaghtan sheep, a rare breed native to the Isle of Man known to grow four, sometimes six horns, which have been preserved on the island since the 1950s. Enjoy lunch as you sail to the popular fishing village of Peel, where you spend the afternoon exploring historic castle ruins, informative museums and its busy seaside promenade where the traditional art of kipper curing is still practiced today. Be sure to visit ancient Peel Castle and the famous landmark overlooking the entrance to the inner harbor. Originally a wooden structure built in the 11th Century by the Vikings under King Magnus Barefoot, it has evolved over the centuries and has also been a royal residence, center of government and military stronghold. Nearby, discover award-winning House of Manannan, where life-size reconstructions bring to life Peel's Celtic, Viking and maritime past.