Shadows are a Sign of Impure Water
Can you see me waving? Shadows are a Sign of Impurities in the Water. From my book, How to Read Water: “You will never see…
Tag: colour of water
Nature’s Clues & Signs – The National Gallery
During a break from recording an audiobook, I visited the National Gallery, a major art museum in Trafalgar Square, London. It has been a long-running fascination…
The Colour and Shape of Navigation Marks
Most navigators, even inexperienced ones, learn that colours are important when trying to identify navigation marks at sea. And most people also know that there…
How to See Through Reflections on Water
Anyone who spends time on or near the water will have noticed that sometimes we can see through water, but often we can’t. For those…
5 Sea Colours That Are Easy to See
Every time we look out at the sea there are lots of colours. Our brain tends to mash them all up because it is busy…
How to Read Water
Clues & Patterns from Puddles to the Sea A New York Times Bestseller. A Sunday Times “Must Read” book. A must-have book for walkers, sailors,…
Reflections and Ripples
We see the most detail in relatively calm water when we look at the places where light and dark reflections meet. Look at the line…
The Colour of Water
The colour of water is determined by: A) What’s under it. B) What’s in it. C) What’s on it. D) And by light levels and…
How to Spot a Dangerous Sandbank or Reef
How to spot a dangerous sandbank or reef: Note the change in colour and the breaking waves. At night only the sound of the breakers…
The Colour of the Sea as a Map
For thousands of years, sailors have used the colour of the sea to help them make sense of the waters they travelled through. In many…