Can mermaids go on land and have feet?

i have never heard of a mermaid who could walk on land, however i have heard of selkies. Selkies are from scottish and Irish myths, they are like seals, but at night they come out of the water and take off their seal skins and are actually enchanted women. Though they did come onto land, they were careful never to go too far onto it- and still preferred water to it.

In some tales, it is said that after the beautiful women took off their seal skins, men who had spied them before, would steal the suit and lure to women back to their house and force them to live their lives as the man's human bride- promising only then to give them back their seal skin so they could return to the ocean. The clever men afterWords burned the seal skins so their wives could never return to the sea. However i have heard a few tales in which the selkie would eventually find their seal skin and return to the sea.