A sea dragon
Imagine that you are swimming in your local lake, enjoying a beautiful day. You swim for a while and then decide to dive in and swim a few meters underwater when suddenly a strange and terrifying creature appears out of nowhere.
Although it looks like a living monster, this is simply a dragon-shaped sculpture found in Lake Neuchâtel, Switzerland. So now you know, if you ever have the opportunity to visit that lake and want to swim in it, prepare yourself to meet this creepy creature.