[Sir_Gareth]

Where do all the fish come from that are in the water?.......How do they get to parts not attached to lakes or streams?
The awnser is here

Under ALL of graal there is a huge under water rivers and streams and the UG lake is the main grounds. The UG lake is barely even 1/100th of it........under all of graal the fish swim thoughout these channels under neith the land that we stand on.

I have found the enterance to one of them.