Yes, Diamond Beach can be dangerous if you don't respect the
ocean. Powerful Atlantic waves called "sneaker waves" can surge up the beach with little
warning. The water is freezing cold (4–10°C) and can incapacitate swimmers instantly.
Never turn your back to the ocean, stay well back from the water's edge,
and don't climb on ice near the surf. People have died here—read our full
safety guide.