Freehold waterfront condominium cluster along Upper Serangoon/Estuary Crescent in District 26 near Sengkang and Punggol boundaries, generally cited at addresses alongside Estuary Walk and Estuary Crescent, adjacent to Serangoon Reservoir and Punggol Waterway with park connectors and reservoir views; close by retail and groceries involve Compass One, Sengkang Riverside Park https://devinlohxo.humor-blog.com/36122284/estuary-condo-880-26