In the second world war squad, the British fortified coastal fortress, Fort Rough, was out of the British waters, which was 3 miles away. In 1967, Roy Bates announces his independence on this platform over the sea.
Meanwhile, Prince Bates earns money as a hosting center called Havenco. you can even get yourself a sealand passport.
Sealand is the smallest country in the world, with only 4 people living on it.
You can reach the official site from here.