artifact
bivalve
cardiidae
clam
coast
coastline
cockle
cuxhaven
discovery
find
germany
habitat
holidays
intertidal zone
landscape
low tide
mollusc
mudflat
mudflat hiking
mudflats
natural
nature
north sea
ocean bottom
recreation
saltwater
seabed
seafloor
shell
specimen
tidal flats
tide
tideland
tidewater
vacation
wadden sea