The Mavki is a Russian/ Slavic forest creatures that haunts the caves and forest of the countryside most popular in Ukraine.
The Mavki (singular: mavka) are typically forest spirits though in some versions she is a type of rusalka
According to the myth any girl who drown themselves because of an unhappy love life become rusalka similarly any young women that dies a tragic or premature death may become a mavka.
Mavkas live in the forests, mountains, or caves, they are young attractive often naked female spirits described as tall with round faces and long hair .
They decorating their homes with rugs and weav thin, almost transparent clothes from stolen flax. They are also known for their love of flowers, which they wear in their hair and plant in the mountains to lure young men in.
Is some beliefs, a man could also become a rusalka: in the Sosnytsia Raion of the Chernihiv Oblast it's believed that men and women can become one of these spirits if they died on Trinity week.
According to myth, they are similar to if not a variant of rusalki or mavki
Both are depicted as beautiful young women with green moss or reed colored hair, though a more malevolent version of the Mavka is sometimes said to have no back or a transparent back through which all of their internal organs were visible (those were more often called nyavka).
Like rusalka that lure men into a watery death, the Mavka will lure men into the woods, where she tickles him to death or tangles him in her long hair and drown him
On Pentecost (Navka's Easter), Mavkas are said to hold celebration, dances, and orgies, accompanied by a demon playing a flute or pipes. To save an unbaptized baby's soul, one must throw up a kerchief during Pentecost, say their name, and add "I baptise you
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It may be safer to just stay out of the woods and away from creeks and rivers all together lol
