Landscape creation in UE4.20.3

Hello,

I want to create a real world shipsimulator with UE.

I’m wondering about following questions:
1 Can i create svg or fbx based waterplanes?
2 can i set a layer eg land and give it a height and create an underlayer water ? give weight to the land-layer so it comes above the waterlayer?
3 Are there good tutorials on in text form, like pdf’s, ebooks?

thx and merry christmas,