This week-long sailing showcases some of Britain’s most awe-inspiring nature, with visits to the capital of Northern Ireland and two remote Scottish isles. Belfast is your gateway to uncovering the volcanic emergence of the Giant’s Causeway, while in Lerwick and Stornoway, you can immerse yourself in traditions that are synonymous with Scotland, from tweed weaving to crofting. There’s even a chance to meet some inquisitive Shetland ponies. Borealis will take you on a Scenic Discovery past Sumburgh Head - this haven for wildlife will afford you the opportunity to spot marine life in the surrounding waters and birdlife, such as puffins, gannets and guillemots circling the cliffs.