"Outdoor hockey" refers to the sport of playing hockey outside, on a surface like a frozen lake or an open field, instead of in an indoor arena. Full definition
Outdoor hockey games have certainly become a new fad. (diehardsport.com)
It's the height of outdoor hockey season. (himpro.ca)
But Hockey sur Glace, a collection of seven short stories and four poems, is a sensitive portrayal of outdoor hockey players, whose rugged aura is derived in part from playing in bitter temperatures on rough and unpredictable ice. (si.com)