Anonymous ID: daa818 Sept. 8, 2020, 10:41 a.m. No.10566732   🗄️.is 🔗kun   >>6816

>>10566459

Looks like it could piles of material moved during dredging. There is a major ship channel there. Normal tidal action and the sand bottom necessitate almost constant dredging to keep the ship channel at the required depth for safe navigation.