algarve
beautiful
billboard
coast
dam
environment
europe
evaporation
evaporation pans
floodgate
industrial
industry
lake
landmark
light
mineral
natural
nature
ocean water
old
opened
pattern
pond
ponds
portugal
production
reserve
saline
salines
salt extraction
salt farm
salt industry
salt ponds
salty
sea
sea water
seaside
shallow water
summer
texture
traditional
travel
wall
water
white
wood
wooden