Water Gardening: ponditis, for a pond ..., 1 by dpmichael

dpmichael wrote:
this natural hole is about 1.5meters deep and 1 x 2 meters wide. I want to make a pond there, and the problem I have is this :

two sides are of solid rock, the other two show fissures in the rock and some soil here and there. The people who make ponds here only know how to cover everything in concrete. Is there another way to seal the walls without losing the appearance of the natural rock ??

Ponditis, here is food for you...