Ya the auld golf is not for everyone, I got into it when I was around 14 and pitch and putt before that, then gave it up for years and found it again in late twenties. I much prefer surfing, but rarely get out, hoping to change that soon, as every time I go, I'm always like feck that was so good, I need to do this more often and then a few years pass!
Ya, the cold water immersion is definitely good and even better in the sea or a river where possible.