Beachgoers crossing a lagoon formed by the low tide, and detail of a watchtower in Cacela Velha, Algarve, Portugal, Europe

photography colour colour image color color image horizontal horizontal image outdoors outside day background people incidental people people in the background travel destination travel destinations travel tourist destination sea water beach beaches sandy lagoon low tide watchtower cacela velha algarve portugal portuguese europe european coastal coast coastal scene coast scene horizon over water elevated view seascape copy space copy space copyspace x 2017m12 x printready