Rivella blau

That's what we drink after a rowing session, when seated on the terrace of a nearby restaurant and watching how the youngsters learn to sail. 

About Rivella: Invented in 1952 and whole generations of Swiss grew up with it. After the original Rivella red, a blue (light) version was introduced in 1959, some 25 years before the great 'Light' wave started. So far all efforts to establish the drink outside Switzerland were not really succesful.