A 91-year-old Vietnamese man swims in Hanoi’s Red River almost every morning and has done so for almost 80 years.

Nguyen Huu Diem wakes up at 4:30 am and rides his bicycle to a pier between the Chuong Duong and Long Bien bridges, VN Express reported. After a quick warm up, he puts on a makeshift life vest made of two water bottles and jumps into the Red River for a swim.

He swims laps, with each lap about four kilometers in length. His morning routine ends with a 15-minute handstand followed by a walk home, with his bicycle.

He has never been hospitalized. Even on cold days when the temperature is below 10 degrees Celsius, he walks to the pier with the help of a flashlight as it gets dark in winter. He also brings a clove of garlic as a charm to ward off evil spirits.

The elderly man also enjoys activities outdoors. He has been to many countries and has even climbed Fanispan Mountain, the highest peak in Indochina. He describes the Red River as a pond in his house which he misses whenever he is away from it.