Hit the beach at Barceloneta and take a quick dip in minus 8 degrees. Yes, IceBarcelona, an ice bar, will give you shelter from the heat of a summer day, with mittens and a winter coat exchanged for your sarong, while you sip cocktails and enjoy sculptures made of ice. The furry arctic-style jackets you get to wear are worth the €15 price of admission (not that you can take them home, but then you wouldn’t want to once you get outside again!), along with one drink.