The City of Private Beaches

now, to find a specific kind of vegetation that could thrive there...

if you were to increase the scale, you could possibly, over the long term, increase the water table significantly in the region. it makes me think that places like Saudi Arabia could do it as well, but the scale can't be that big. too much water flow would be dangerous if you still were trying to utilize tidal forces to circulate the water.

that being said, it doesn't have to fluctuate or even circulate. as long as the ecosystem is healthy, it should be fine. with larger scale, circulation seems less necessary. 

it's easier to dig canals than make islands right?