C. Where Danger Lurks Never dive into strange water as there maybe snags, rocks, broken glass and rubbish on the bottom. Inflatable rubber toys are dangerous. An unexpected current or breeze can carry these toys, and their passenger, away from shore in a matter of moments. Don't get too cold as this can bring on cramps. When surfing or swimming in surf it is easy for the current, unknown to the swimmer, to gradually drag you away from the other bathers. Check your position frequently and stay close to the main group of bathers. Where a beach is patrolled by lifeguards never swim outside the marked areas – the lifeguards know the beach better than you. On surf beaches don't swim in the area set aside for surf boarders. Many swimmers have been badly injured by surfboards.