If the beach is out of the pond, I would excavate it to a level base and surround it with a landscape timber border to prevent erosion and sand loss. Short block retaining wall on the uphill side, if needed. Some perforated drain pipe under the geotextile fabric would be a good idea to drain the leveled beach.
If the beach slopes under the water surface, a mound of clay at the bottom edge is a good idea. Floating a log chain offshore can reduce wave erosion, but could block wading access into deeper water. I've heard suggestions to use a trench instead of a mound, but 6 of one, half-dozen of the other. You're gonna suffer sand movement underwater no matter what you do, IMO.
Last edited by Hirsch56; 03/12/22 11:14 AM.
