Introduction
Coastal currents are an invisible force that can be both a friend and a foe. For surfers, they create perfect waves; for divers, unique underwater routes; but for unprepared swimmers, they can be deadly traps. In some regions, currents are especially strong and unpredictable — and these are the ones we will explore.

New South Wales Coast, Australia — the land of rips
Australia is famous for its beaches and its dangerous rip currents — narrow channels of water pulling swimmers away from shore. On Sydney beaches like Bondi and Manly, lifeguards perform thousands of rescues each year. Rips form due to seabed features and strong surf. Access is via Sydney, with the best time to visit during the Australian summer (December-February). Swim only in flagged lifeguard zones.

California Coast, USA — the cold power of the Pacific
California’s beaches, from San Diego to San Francisco, are known for strong currents and cold water. Rip currents and longshore currents can carry swimmers far from their entry point. Ocean Beach in San Francisco is particularly dangerous. Access is via Los Angeles or San Francisco. Best time to visit is summer, though the water remains cool year-round.

Durban, South Africa — where two oceans meet
South Africa’s coast, especially near Durban, is influenced by the powerful Agulhas Current. It brings warm water from the Indian Ocean but creates strong coastal flows and dangerous back currents. Professional swimmers and surfers train here, but beginners should be cautious. Access is via Durban International Airport. Best time to visit is May to September.

Hawaii, USA — paradise for surfers, challenge for swimmers
The Hawaiian Islands are famous for big waves and strong currents, especially in winter. On Oahu’s beaches like Sunset Beach and Waimea Bay, waves can reach 10 meters, and underwater currents become extremely dangerous. Access is via Honolulu. Best time for surfing is winter; for calmer swimming, summer.

Brazilian Coast — the hidden force of the Atlantic
On Rio de Janeiro’s beaches, such as Copacabana and Ipanema, strong rip currents are common. Despite warm water and a festive atmosphere, lifeguards work constantly. Access is via Rio de Janeiro Airport. Best time to visit is December-March.

Safety tips
Never swim against a rip current — move parallel to the shore until you exit the flow. Swim only in areas with lifeguards. Learn the warning signs and beach flag meanings.

Why visit
Dangerous currents are not only a risk but also part of the unique nature of the coast. Here you can witness the ocean’s power, enjoy the beauty of the waves, and feel respect for the elements. The key is to be prepared and cautious.