When your seashore has lost its seashells, you need the stones first and grass later.
Large quarry rock can be scarce and costly.
Smaller riprap rock up to 175mm is easy to get cheaply, easy to transport and now very easy to rapidly deploy to protect the seashells and the seashore.
Once deployed, the vegetation is quick to take back its natural territory and take on board the help the rock bags provide to fight shoreline erosion.
Easily filled and deployed with small to medium excavators, the result of using the rock bags to protect shoreline erosion can be fast, filling and fertile.