Breinesflya is a coastal plain at the western coast of Sørkapp Land at Spitsbergen, Svalbard. It has a length of about twelve kilometers, extending from the river of Vinda to Raksodden. Slaklielva from GrÃÂ¥kallbreen through Slaklidalen flows across Breinesflya, as does Lidelva coming from Liddalen. At the northeastern side of the plain are the mountains Wiederfjellet and Lidfjellet.