Water layer is protruding my landscape, how do I fix please?

Hi There

I was hoping to create a small pond up on my cliff top but it’s created a large bulge on the edge of my cliff:

I can turn off the water layer in the landscape mode which removes it, however it then messes with my pond and leaves a bleed of water, so doesn’t actually fix it.

Appreciate any help.

Thank you :slight_smile: