The Gloup, Orkney

Formed by coastal erosion and the roof collapse of a sea cave, for a sound recordist a location with such an enticing onomatopoeic name was not to be missed!

In the darkness of the 25m deep chasm sunlight shines through a small opening out the sea.

The Gloup has an interesting reverberant acoustic and, although on the day we visited the sea was calm and gentle, I wondered what it must sound like in a winter storm with a large swell crashing against the entrance, causing the tall chamber to resonate like an immense natural instrument.

Is it possible that as the tide rises and falls the pitch of The Gloup shifts accordingly? I look forward to future visits to record how these variants in weather and tide might affect the timbre, rhythms and pitch of this great instrument.