It does have a lot of water, and the Gungans build their cities beneath the surface, but there is also a fair bit of land.

[Water is something that Naboo has never wanted for though. Then again, it doesn't have too much water either. It is a moderate planet, gentle in nature compared to some of the other planets in the galaxy. Breathable air, fertile soil, bountiful harvests and a pleasant temperature.]

Earth?

[It is a peculiar name, given that earth implies dirt or ground.]

Yet it has reasonable land masses as well, or no?