Monofin
![A freediver using a monofin](/Images/godic/202501/28/Junko-Kitahama_Apnea-Monofin_cropped1547.jpg")
![Herbert Nitsch wearing a monofin at the Cyprus BIOS 2004 Freediving Open Classic](/Images/godic/202501/28/Herbert_Nitsch_at_the_Cyprus_BIOS_2004_Freediving_Open_Classic1547.JPG")
![Monofin](/Images/godic/202501/28/Skorjenkoflosse1548.jpg")
A monofin is a type of swimfin typically used in underwater sports such as finswimming, free-diving and underwater orienteering. It consists of a single or linked surfaces attached to both of the diver's feet. The diver's appearance is then reminiscent of a mermaid or merman.