It’s well-known that all yachts must fly the ensign of a nation they are visiting from their starboard cross-trees (spreaders to us). However, if you’re cruising an area with a strong ethnic presence, such as Brittany, Normandy, Wales, Scotland ─ or Cornwall if you hail from what the Cornish describe as ‘The Mainland’, you’ll be wonderfully well received if you fly the flag preferred locally. Secure it either above or below the national flag, depending on your inclinations and the level of popular support for the separatist movement.