John Zilles, a 49-year-old who has been kiteboarding for 20 years, recently found himself stuck at sea after crashing about a mile off the coast of Ventura, California, an area known for great white sharks. Zilles told his story to the Daily Mail:

’I started thinking about all the great white shark sightings in our area, and although I realised I could probably swim in, I couldn’t stop thinking about sharks - it was a real mind bender.

’I realized I had my watch - so called the Ventura Harbor Patrol, explained my situation and asked for help.’

The harbor patrol sent a boat, and Zilles spotted it, but the boat was heading in the wrong direction. Another quick call on his Apple Watch and Zilles was in the boat heading back to safety.