This is a bridge in Paris. You hang locks on it with the name of you & your boyfriend/girlfriend/best-friend then throw the key into the river. So even though the friend/relationship may end, you can’t remove the lock. It stays there forever, as relevance to someone once a part of your life. Been here!!!!!!!!! :D
Also known as the pink lake in Australia, Lake Hillier has no decided reason as to why the lake has such a pink hue. It is believed that it is down to the salt content of the lake or possibly red halophilic bacteria in the salt crusts.