If you don't live near a sandbank, you can find small bags of sand at your local arts and crafts store.
Deep, but before it lies a sandbank covered at low water by a depth of only 4 ft.
In the centre of Whairikauri is a large brackish lake called Tewanga, which at the southern end is separated from the sea by a sandbank only i 50 yds.
The first attempt which the city of Amsterdam made to overcome the evils wrought to its trade by the slow formation of the Pampus sandbank at the entrance to the Y from the Zuider Zee, was the construction of the North Holland canal to the Helder in 1825.
West of Knysna, and separated from the seashore by a sandbank only, are a series of five vleis, turned in flood times into one sheet of water and sending occasional spills to the ocean.