LUOKKA, ESPANJA - HUHTIKUU 30, 2020: Pelastaja seisoo hengenpelastaja tornissa lippu rannalla - Kuvapankin valokuva ja kuva

Yellow flag tower on a beach, indicating swimming caution.

ROTA, SPAIN-5 JULY: unidentified bathers on the beach in Rota on July 5, 2010. The beach of Costilla deserves every blue banner year as well as the important distinction of the "Q" for quality

Green Miami Beach lifeguard tower with ocean view in background

Lifeguard tower on a beach in Dubai, United Arab Emirates

IQUIQUE, CHILE - JANUARY 23, 2015: Unidentified person in lifeguard watchtower on Cavancha beach on January 23, 2015 in Iquique, Chile. Iquique is a popular beach town and free port city in Northern Chile.

Wooden Lifeguard Tower on an empty beach