When I was younger and we lived on Kwajalein, I loved going in the water, so whenever we went to the beach and there was swimming involved, I was right there in the ocean.
These days, I don't go to the beach that often. And even if I did, just the idea of salt water in hair . . . . just no.
The last time I was at a beach was when my parents took me to St Maartens.
Throughout the trip, my dad kept telling me I should make a point of going into the ocean at least once, so one or two days before we left I walked out of our hotel room and down to the beach. As my dad watched from the balcony of our room, I waded in the ocean until the water got to my waist, turned around, spread my arms and said, "There! Are you happy?"
(I think there's a picture of me doing that somewhere.)
The only time on that trip I got my hair wet with ocean water was when I swam with dolphins. Their 'pool water' was just water piped in from the ocean.