What does Calpis taste like?

Calpis tastes like a light milky yoghurt drink which is not to dissimilar in taste to something like Yakult. It is very popular in Japan. It was one of my favourite new drinks in Japan. You can buy it as a concentrate version that you can mix with water to make Calpis Water or soda to make Calpis Soda. Cheap and great if you love the stuff.