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17 links have been added on 8 ideas about #sea.
  1. Great idea but just found this. “The main rock in South East England’s coastline is chalk. Chalk cannot be broken down into sand. The pebbles on Brighton’s Beach are mainly composed of flint. (Yes, the kind of flint that you can strike to make a fire). Flint’s a very useful substance in developing societies even if it doesn’t erode well into sand.” Oh well…

  2. cool these exist already, brill idea

  3. “Jules’ Undersea Lodge is the only underwater hotel in the United States. … Since you have to scuba dive to reach the hotel, you must be SCUBA certified.”

  4. Love this idea, there is plenty of room in the sea and plenty of countries that would love to attract billionaires – and now the tech is available to just make new artificial islands. You saw it here first I guess. Who will make the first one?