But some are also thought to harbour water ice, which could be used as a raw material for the manufacture of rocket propellant or even breathable air.

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More to the liking of Alice, for reasons that are evident in its name, was the Ice Cream Cruise that putted around the town harbour for close-ups of boats, houses and birds.

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The Grove Hotel, which is attached to the Ice Palace, is spare to say the least, but is just seconds from the beach or the harbour.

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Those without a Ferrari or luxury yacht can slurp an Anatolian dondurma (ice cream) from Mado in Bebek Park and watch locals fish on the boats that bob in the harbour.

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