The fountain suggestion was originally made a long time ago, the intention being that it was to be the biggest in the world.
I think it was eventually established that the water in the bay is not deep enough for such a project.
I think it was also established that the amount of water going up (if it had been viable) would have sunk any dhows passing under it when it came down. We also joked about it providing a free "jet wash" to planes landing at the airport.