I get asked the same question about riding motorcycles.
If I have to explain it, you won't understand.
You have to ride, or surf, to "get it".
Of course, meeting some of you blokes has added to the charm, and I'm not even as good as Mac, but I still love it.
When I walk into my shed and smell the wetsuit and wax, all I want to do is go down the beach and paddle out