Bobsleighing is an exciting and thrilling winter sport that involves teams of two to four people racing down a winding, icy track in a gravity-powered sled. It is a thrilling and adrenaline-filled experience that requires skill, precision,
From Wikipedia
Bobsleigh or bobsled is a winter sport in which individual athletes or teams of two to four athletes make timed speed runs down narrow, twisting, banked, iced tracks in a gravity-powered sleigh. International bobsleigh competitions are governed by the International Bobsleigh and Skeleton Federation.