Snow gliders are a type of winter recreational activity that combines skiing and sledding. The term is made up of two words, 'SNOW' and 'GLIDER, ' which can be found in the crossword solutions SKI (3 letters) and SLED (4 letters). Skiing involves sliding down a SNOW-covered slope on skis, while sledding involves riding down a hill on a SLED. SNOW gliders combine these two activities by using a SLED with skis attached to it, allowing for a more thrilling ride down the hill.