Mermaids are creatures of myth and fiction. They do not exist. As such, they have no underwater cities.
Within fiction, mermaids could have what ever living situation the author chooses, but no major mermaid fiction comes to mind beyond Disney's The Littlest Mermaid.
Assuming that is the right city and not a typo: No there are no mermaids there.
Copenhagen, Denmark
Mermaids are mythical creatures which are half fish and half human. Depending on the story they live in different parts of the ocean. Usually they claim they live in the deepest part of the ocean or lagoons.
Mermaids are mad at humans because there home, Atlantis (the lost city of Atlantis) was destroyed. Although they are mad at us, they will not hurt us unless for defense. Mermaids are very shy, beautiful creatures that live the oceans and seas.
There are no actual mermaids...
mermaids livge in the ocean there for mermaids are real
No. Mermaids are not real and there are no spells to make people into mermaids.
There are no mermaids anywhere, since mermaids do not actually exist.
You are real, but mermaids are not.
Mermaids are not real
mermaids get their tail any time thy chande to mermaids
In mythology, mermaids are often depicted as having the same anatomy as humans, so their reproductive organs would likely be located in the same place as a human female - between the legs. However, since mermaids are fictional creatures, the specifics can vary depending on the source.