My place in the seabirds flock has always been the one to work out which direction to swim in. Not only is this because I am bossy but because I am a science geek and am slightly obsessed with tides and waves. However, I get it wrong as much as I get it right. Follow me, when we swim, at your own discretion. So a while back, whilst I was I was searching for my next read I stumbled across The Book Of Tides by William Thomson and hoped it may explain why sometimes the sea really wasn’t flowing in the direction I though it would.
I read it in a day. A cold wet Sunday spent on the sofa under a blanket with the most beautifully illustrated book you can imagine. Some of the information contained within I knew as it is included in my Surf Life Saving training, but much of it I didn’t. Ocean and sea occurring phenomenon like rip currents and eddys are simply explained and accompanied by wonderful illustrations. By his own admission, the author is not specifically trained in Oceanography but has gained his knowledge through a passion for the coastline, the sea and reading, researching and chatting to other coastal dwellers whilst travelling around in his van. His Tide Maps are not just a visual explanation but literally a work of art – you can commission a tide map for anywhere in the world.
Once I had finished the book, I did what all modern day readers do. I posted a picture of it on Instagram . And received a reply from @TidalCompass the author’s IG persona, informing me that he runs Tide Walks and there would be one in Brighton in the coming months. Naturally I booked myself and another Seabird on!
Whilst we waiting for the date of the Brighton Tide Walk I kept swimming with the seabirds boring them all with my knew found knowledge. Hence the nickname Tidal Bore. Five of us spent a sunny Sunday swimming as hard as we could against the flow of a spring tide flow only to find ourselves stationary in the water. Due to the conveyor belt swimming it meant we could get out exactly where we had set off. An efficient use of the tidal flow.
On the day of the Tide Walk, we met at Brighton Beach Bikes to the west of the Palace Pier. It was fully booked with 20 participants, many of whom were regular and local sea swimmers. We walked west and stopped every few hundred metres for William to explain various bits of sea knowledge. He explained how a tide wave travels around the UK and that it’s peek and trough creates High and Low tide. This was visually demonstrated with a length of rope. Details were shared on slack tide, frequency of spring tides and the phases of the moon. Again props were used to enhance the transfer of information. Swell and wave formation. Rip tides and eddys. And lots more including the effect storm surges and perigee phase of the moon can have on the height of tides.
It was a brilliant 2 hours spent on a sunny Saturday. I would thoroughly recommend it to anyone who wants to learn more about their local coastline. Future walks are scheduled for various dates across the South East and South West. I have since downloaded the Imray Tides Planner app so that I have a better idea of tidal flow before I set out swimming. Although I may skip it sometimes and just go with the flow……………………………