Loch Ness

Loch Ness is world-renowned for sightings of the legendary Loch Ness Monster – "Nessie", and much of the reason for the continuing persistence of the Nessie legend is due to the peculiar geological features of the Loch.

Firstly, the waters of Loch Ness are surrounded by soil with a very high peat content, which means that the water visibility here is exceptionally low – thwarting the efforts of many research teams over the years.

Secondly, Loch Ness is the largest freshwater loch (or indeed lake) in Great Britain when measured by sheer volume of water. Around 37 kilometres long and up to a staggering 230 metres deep, Loch Ness reportedly holds more fresh water than the combined volume of all of the lakes in England and Wales.

So the largest body of water in the UK is exceptionally murky, and hugely deep – maybe there really could be some kind of creature hidden down there after all.