surfer
Refers to a person who surfs, typically on ocean waves. The word is a straightforward loanword and carries no special nuance beyond its English equivalent.
He is a professional surfer.
He became a surfer back in high school.
夏になると、多くのサーファーがこのビーチに集まる。
In summer, many surfers gather at this beach.
The surfers rode the waves one after another.
web surfer
net surfer; internet surfer
windsurfer
bicycle surfer; surfer who transports their surfboard by bicycle
Borrowed from English 'surfer'.