 Gungwa reWadden rinotambanuka kubva kuDen Helder, kuchamhembe kwakadziva kumadokero kweNetherlands, kupfuura nzizi huru dzemvura dzeGermany kusvika kumuganhu waro wekuchamhembe paSkallingen muDenmark pamwe chete nemhenderekedzo yegungwa yevamwe uye nzvimbo yakazara yeanenge. Mukati meNetherlands inoganhurwa kubva kuIJsselmeer neAfsluitdijk. Munhoroondo, nzvimbo dzomumhenderekedzo yegungwa dzaiwanzowirwa nemafashamo makuru, zvichikonzera kufa kwezviuru, kusanganisira mafashamo aSaint Marcellus muna 1219, mafashamo eBurchardi muna 1634 uye Mafashamo eKisimusi muna 1717. Zvimwe zvacho zvakachinjawo zvikuru mhenderekedzo yegungwa. Matangi akawanda nemigwagwa yakawanda yakavakwa, uye somugumisiro mafashamo achangobva kuitika akaparira vanhu vashomanana kana kuti hapana vakafa kunyange zvazvo mamwe matangi asingawanzo uye munzvimbo imwe chete akaparadzwa munhau ichangobva kuitika. Izvi zvinoita kuti ive imwe yenzvimbo dzinoshandurwa nevanhu zvakanyanya pasi pano. 