A cave like Smoo cave requires little in the way of introduction. A game of where's (the) Wally in the image above will show just how big the largest sea cave entrance in the UK is. The main cave is 83 metres long and has three chambers (chamber 1 is shown in the above image). Allt Smoo river plunges through the ceiling of chamber 2 and into a deep pool in the form of a 20m high waterfall before flowing through the cave and out the entrance. At the back of the cave in chamber 3 the dry passageway ends and yet the cave system continues, plunging into a a sump that divers have explored 40 metres into before being restricted by mud and silt. One of the divers supposedly described the dive as the scariest of his life as he disrupted so much mud that he lost all visibility and had to feel his way back out of the depths!
This soundscape was recorded inside chamber 2 where the Allt Smoo River flows into the cave. The rock walls of the chamber reflect sound so well that the acoustic has an unusually long decay, thus creating a whitewash of immersive and oddly disorientating 'noise'. I found the following description of this sound by travel blogger Bernard L'Estrange amusing and I hope that he comes across my truly immersive recording!
"...the sound here in the caves second chamber is deafening. Forget what the salesman at Curries told you about Dolby Prologic 5.1 Surround sound being the best, this is Total Sound Immersion. I should copyright that name, it has a nice ring about it..."