From the heights Hugo, you can also see the Lakes, some Scottish mountains and Ireland.
To calculate how far you can see you simply multiply your height above mean sea level by 1.17 times the square root of that height, and the answer gives the distance you can see in nautical miles.
For example, let's say you are at the top of Walton-on-Naze Navigation Tower, which is 81 ft high, and the cliff at that point is 75 feet high, then you are 156 feet above sea level.
The formula to calculate distance to the horizon is:
1.17 x √156 = Distance in nautical miles.
To see what features you can see, you only need to add the height of the object to your own height above sea level.
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