bouldering

Noun

Climbing, without ropes, on large boulders or boulder-sized objects.

Verb

present participle and gerund of boulder

Scrabble Score: 14

bouldering: valid Scrabble (US) TWL Word
bouldering: valid Scrabble Word in Merriam-Webster MW Dictionary
bouldering: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 19

bouldering: valid Words With Friends Word