Electrically Charged Water
From WikiRaider
Electrically Charged Water is a Trap that features in Tomb Raider Chronicles in the level Sinking Submarine and in Tomb Raider Legend in the beginning of the level England - King Arthur's Tomb?.
Electrically Charged water causes quite a lot of damage, and there's ususally a way to avoid touching it, for example traversing along ledges or jumping onto platforms.