I am a bit confused about the use of the verb "do".
I could understand that in a passage like
I like playing soccer; I have been doing it for ten years.
"Doing it" refers to "playing soccer" here.
But in the case of a sentence like the one in the title:
I like snowboarding; I have been doing it for 10 years.
what does "doing it" refer to?
Does it mean "doing snowboarding", which, to my ear, sounds awkward, or simply, is the second sentence incorrect?
Thank you in advance.