Along the coasts of South America marine terraces are present, where the highest ones are situated where plate margins lie above subducted oceanic ridges and the highest and most rapid rates of uplift occur. At Cape Laundi, Sumba Island, Indonesia an ancient patch reef can be found at above sea level as part of a sequence of coral reef terraces with eleven terraces being wider than . The coral marine terraces at Huon Peninsula, New Guinea, which extend over and rise over above present sea level are currently on UNESCO’s tentative list for world heritage sites under the name "Houn Terraces - Stairway to the Past."