noun
skier
A person who skis, either recreationally or competitively.
彼はプロのスキーヤーです。
He is a professional skier.
多くのスキーヤーが週末に山へ行く。
Many skiers go to the mountains on weekends.
スキー is the sport or the equipment (skis), while スキーヤー refers specifically to the person who skis.
Borrowed from English 'skier'.