So on Monday, because it was a bank holiday here, we had the opportunity for our first summer day at the beach – one of our favourite summer-time activities. The sunlight shinning though the clear water and the shadows of the seaweed were very inviting, and I couldn’t resist having a quick refreshing dip!
Seaweeds, like terrestrial plants, will use sunlight to photosynthesis. So generally you will only find seaweeds in water of certain depth and clarity. And some seaweeds like the one below have air bladders to help keep them afloat, and so, close to the water surface.