Half an hour into my first dose of ‘blue care’ and, wow, it’s working. It feels as if every cell in my body is vibrating with positivity. Yet, a short time earlier I was sitting in the back of a taxi, looking grey, feeling car sick and worrying about life in general. Now I am uncharacteristically ‘whooping’ with joy. What kind of miracle pill can lift a human spirit so quickly and efficiently? And, surely, it can’t be legal? Well, not only is it legal, it’s positively healthy. ‘Blue care’ is the catch-all phrase for water-based therapies. From sitting by water to standing on it — or attempting to, as I am during an intensive session of surf therapy.