Shoals of the Netherlands

thumb|250px|Location of Engelsmanplaat in the Wadden Sea thumb|Engelsmanplaat during low tide in 2009

Simonszand () is a sandbank between the West Frisian Islands of Schiermonnikoog and Rottumerplaat in the Netherlands. It is located in the municipality of Het Hogeland in the province of Groningen.

Richel (; ), or rather De Richel (The Ridge), is a permanently dry sandbank in the Wadden Sea, in the gap between the Dutch islands of Vlieland and Terschelling. It is located about 1 kilometer east of the northernmost point of Vlieland and is administered by the municipality of Vlieland. The sandbank has an average surface area of 116 hectares. It is completely flooded only during extremely high tides.

special protection areas defined by the habitats directive in the Netherlands