Can we salvage this walkway?
We tried to lay flagstones on a backyard walkway but they keep sliding around. To be truthful, I bought the wrong materials--they were actually flat retaining wall rocks which I really liked the look of, and especially liked the price. The total walkway is approx. 3 feet wide by 30 feet long. We excavated a winding pathway about 4 inches down, laid truckloads of pea gravel by hand the entire length and then nestled the stones in like flagstones. It took us hours, mixing and fitting the stones to the path, tapping them down with a rubber mallet. It really looked good when we got finished with it. But then as time wore on the stones settled as we and the dog walked on them and the stones slipped around. We live in the northeast so we have ice and snow in the winter but the backyard pathway doesn't get much use in the winter. So without calling the $550 in materials a complete loss, is there any way we can make a usable, stable pathway??? Take all pea gravel out and set the stones in concrete? Or sell the stones on craigslist and start over and get pavers?