Spotting a rip current at Perranuthnoe Beach
/In this blog post we look at a straight forward rip current at Perranuthnoe Beach, in west Cornwall. Generally, with no swell Perranuthnoe can be a very safe beach to swim at. However, add a few waves and it can be quite the opposite. They do have lifeguards for the 6 peak weeks of the summer. As you can see in this example. As well as rip on the west side of the beach, there was also a diagonal rip on the east side.
Now in this example, the rip runs from around waist height in the water, right out just past the breaking waves. It runs near the headland. Rips will often run along headlands, harbour walls, rocky surfaces, as the smooth rock offers less resistance and the water flowing back out to ‘sea level’ will always follow the path of least resistance.
What this video does highlight very well and this is generally the case…is that you rarely find rip currents where there is a consistent breaking wave. This is because the depth of the sand creates the waves…whereas rip currents tend to dredge water off the bottom as the water flows out and this creates a deeper channel. This is why waves don’t break in rips. In some instances, they will break further out and then peter out as the wave travels over the deeper section of rip current. This video demonstrates this very well.
