S-8 open class ice yacht (boeier), y/c Strelna, Saint-Petersburg, Russia | DJI Inspire1 

S-8 open class ice-yach racing in Gulf of Finland, St.-Petersburg.
Saint-Petersburg S-8 open class ice-yacht association
Open class S-8 (Russian: "Svobodny vosmimetrovy class" or "vosmyorka"), mainsail - 8-sq.meter, crew - 1.
Free design with Class Rules limitations.
S-8B - wing sail 8-meter iceyachts.
More info about S-8 ice-yachts on FB and VK.
(eng/rus):
/ 1553933614882564
(russian only, more info, news, racing, drawings/building/trimming):
class_c8