sledding

/S L EH1 D IH0 NG/
verb
  1. 1

    To ride a sled.

  2. 2

    To convey on a sled.

noun
  1. 1

    The act of sliding downhill, or transporting something, on a sled.

Source: https://en.wiktionary.org/wiki/sled, https://en.wiktionary.org/wiki/sledding