surfing vs surfboarding

surfing and surfboarding both are nouns.

Word	Noun	Adjective	Verb	Adverb
surfing	Yes	No	No	No
surfboarding	Yes	No	No	No

As nouns, surfing and surfboarding are synonyms defined as:

surfing and surfboarding: the sport of riding a surfboard toward the shore on the crest of a wave

Other synonyms of surfing include surfriding.

surfing (noun)	surfboarding (noun)
the sport of riding a surfboard toward the shore on the crest of a wave	the sport of riding a surfboard toward the shore on the crest of a wave