Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Curonian Spit' has mentioned 'Above sea level' in the following places:
Occurrence Sentence Text Source
[1] A glacial moraine served as its foundation; winds and sea currents later contributed enough sand to raise and keep the formation above sea level.
Parnidis sand dune drifted by harsh winds is rising up to 52 metres (171xc2xa0ft) above sea level.