Is it all feasible to build groynes around the islands to trap sand, and then, say, use bulldozers to pull the sand inland as it accumulates? Groyne: https://e

Is it all feasible to build groynes around the islands to trap sand, and then, say, use bulldozers to pull the sand inland as it accumulates? Groyne: https://en.wikipedia.org/wiki/Groyne https://en.wikipedia.org/wiki/Groyne