Cashed in our free canal cruise for day 3 on the city card. It allowed us to chill, look around and see the city from a different perspective. We went to Gassan Diamonds (which was a little left-field for us) and learned a few interesting things about carats, colours, clarity and cuts....oh and not to look at a diamond for too long because it will hypnotise you into buying it. Unfortunately it was more of a sales pitch than a museum but still pretty cool anyway.
