Holme Dunes, Norfolk. 

At low tide, and with night approaching, we finally managed to set up the Lento box on a tripod on the sand, mics facing out to sea. It was the curlews at dusk, framed within the vastness of the empty beach, that we wanted to capture as a photograph in sound. It felt good to have reached a spot to record, after a lot of walking. It was though still only the mid-point of the intertidal zone. A very low tide.  

The mid-point proved interesting. Such a low tide leaves exposed an enormous area of flat hard sand. The landscape seems to guide the sound of the sea into your ears over long distances, and from very wide angles. It's what we love the most. That feeling of being very very small in a vast open and entirely naturally formed space. Naturally formed, naturally murmurating, and with magical fleeting calls of curlew.

We explored the area around the box for a while, then realised we had a problem. Light. The levels had been dropping while we'd been walking. Ten minutes into the record we turned round from the end of the sunset and realised the land behind us had gone almost completely black. Getting up the beach would be ok but finding the narrow and indistinct footpaths where we'd come through the dunes was definitely not going to be ok. There were no street lights or navigation points. 

But the atmosphere was so exhilarating, so precious, we let the box record for just a few more minutes. We then scooped it up and hastily began the next mission, to find our way back. This is why episode 239 is shorter than usual. Shorter but we feel important to share because it conveys some of the sound-feel of being out in a vast intertidal zone, empty other than the curlew, with night fast approaching.