As we climbed on top of Snowdon this Easter, we came across Llyn Llydaw (Welsh for Brittania). This is said to hold the legendary Excalibur sword offered to King Arthur by Nimue, The Lady of the Lake. After Arthur was fatally wounded at the Battle of Camlann, she reclaimed the sword in the deep waters of Llydaw. Some researchers claim that the lake was actually Llyn Ogwen, where a recent (2017) archeological discovery was done of a 6th century sword.