Ieuan Llyr Jones: Depending on the tide, this swim can be done either way - Aberporth to Tresaith on an "in" tide and vice versa"on" the out tide. The distance is just over a mile - should take approximately 40 minutes.
Following the coast from Aberporth to Tresaith on a low incoming tide the reef would need to be navigated otherwise it is a straight-line hugging the coast as you swim.
There are plenty of easy out points all along the coast, joining up with the Ceredigion Coastal Path.
When swimming into Tresaith there are options to circle "Carreg y Ddafad" (Sheep Rock) or at a lower tide, climb out in it's Southern side bay. Better to park at destination and then walk the cliff path to other village before the swim back. Showers and changing rooms at both villages and good pubs with good hot chocolate
It is really worth swimming around "Ogof Goron", an underwater cave at high to medium tide, which can be swam through into a small half enclosed bay and is located about a third of a way across from the Aberporth end. The swim onwards to Penbryn can be done but it is quite boring and can only be done at low tide as the walk back on the beach is the only option apart from a very high cliff path or long road
There are Lifeguards on both beaches in the summer between 10am and 6pm.