The very last of the evening light reflects off the dark water of Lower Lliw Reservoir near Swansea.
The reservoir has some sort of filtration system which intermittently creates disturbances in the water surface. Seeing this in the late evening light was quite eerie, as though there was some deep water monster coming up for air!
This image did not make it into the finished StillWalks video from Lower Lliw Reservoir but the sound did. The image that accompanies the sound in the video is of the resultant ripples in the water.
The mouth of the River Lliw is near Loughor on the Loughor Estuary in South Wales. Its width is obviously significantly greater here than at its source and as a consequence, the children of Felindre Primary School could only estimate the width and the depth.
The flow rate of the river could still be measured and this was done by throwing a piece of orange peel into the water and timing it between two points on the river bank. This and much more information will be included in the teaching and learning resource that I will be helping to produce as a part of the Clear Streams project managed by Swansea’s Countryside Connections team.
It is worth keeping our rivers and streams clean if only for the beautiful effects of sunlight falling on clear water.
The reasoning for the Clear Streams project goes much further than that of course. However, it is still important in my mind, that those taking part in the project appreciate these visual aspects as well as developing their understanding of the environmental aspects.
The orange in the second image was not left in the River Lliw. It was being used as a device for measuring the rate of flow of the river at this second stage through Felindre on its way to the river mouth at Loughor.