It's early morning and we're alone beside the River Towy estuary just downstream from the ancient town of Carmarthen. The tide is rising in mini surges, softly smothering the saltmarsh and tickling the feet of the sea defences. BBC Countryfile Magazine's Sound Escapes are a weekly audio postcard from the countryside to help you relax and transport you somewhere beautiful, wherever you happen to be. Recorded by Fergus Collins, introduced by Hannah Tribe. Email the Plodcast team – and send your sound recordings of the countryside – to: [email protected] Learn more about your ad choices. Visit podcastchoices.com/adchoices