subaquatic

The Membranes, with its subaquatic setting, found a place as alien as life gets on planet Earth.

Humanity has migrated to subaquatic domes to escape the lethal consequences of a vastly deteriorated ozone layer.

The larger story is the spread of greater Amazonia, the millions of square feet of new space that is the subaquatic iceberg floating under the Helix’s crystal tip.

These soon come in contact with some subaquatic object and adhere to it.

I became absorbed in a sort of subaquatic mirage, in which I seemed to distinguish reflections beneath the surface.

This can be done, even under the surface of the water, by the use of certain subaquatic apparatus.