The mother of a 25-year-old local man called police on Tuesday night to help look for her son, who went hiking in Sai Kung in the New Territories.

The man surnamed Chung rang his mother at 4pm to say he was hiking at High Island Reservoir East Dam in Sai Kung with two female friends from Russia, aged 22 and 23, but he would be home for dinner, Sing Tao Daily reported.

However, Chung didn’t show up and his mother couldn’t reach him on the phone. At midnight, she decided to call the police.

Her call led to a search shortly after by at least 42 police, firemen and officers from Civil Aid Services in the countryside to look for the trio.

The overnight search failed to locate Chung and the young Russian ladies, but at 10:30am on Wednesday the trio went downhill and police eventually found them in Pak Tam Chung in Sai Kung.

The three hiked up to the hill on Tuesday afternoon but opted to stay overnight at the top as it was too late and dark to go downhill. They waited till the morning to avoid having an accident.

Meanwhile, Chung was unable to contact a mobile network from the top of the hill so he couldn’t contact his mother to let her know what had happened.

The trio had no injuries when police found them. They were sent back to the city after their personal information was recorded.