Armeria beach cliffs coastline Cornish cornwall cove England english flowers Great Britain inlet natural nature ocean rocks sand sandy sea sheltered shore spring thrift tide water waves wild access barrel cannon defend defensive entrance firarm guard guarded gun harbour metal port seaside stock stone walls blue cliff curved danger exercise fence fencing footpath path protect safety trail Trek walk wooden ancient architecture castle crest design elements emblem fortress historical insignia Michael motto mount national trust old saint St. Michael's Mount stronghold bollard dock haven iron mooring quay quayside rusty wall clouds fun group holiday leisure mainland Marazion people pleasure rock sky tour tourism tourists vacation boulders coast coastal horizon inviting surf apple bench garden green landscape orchard peaceful quiet relax rest rural scene seat sit tranquil trees view bay boulder clifftop headland insecure lichens precarious unsafe gnomon measure quality sundial time