The youth soccer team trapped in a Thailand cave for 18 days ventured inside just for “fun” — and only planned to spend about an hour there, according to a new report.

Aikhan Wiboonrungruang, 33, whose 11-year-old son Chanin — also known as Titan — was the youngest member of the Wild Boars soccer team, told The Bangkok Post she spoke to her son from behind a glass isolation barrier while he and his teammates recovered at Chiangrai Prachanukroh Hospital.

The boys had not taken along any snacks when they visited the Tham Luang Cave after their training session — and they did not want to spend more than an hour there, according to the report.

But when heavy rains caused a flash flood, the boys were forced to venture deeper into the cave.

“After the first three nights with no food in the cave, my son felt extreme hunger and cried,” Wiboonrungruang told the outlet. “He had to rely only on water dripping from the rock. It was very cold at night, and pitch-dark. They had to lie huddled together.”

Coach Ekapol Chathawong encouraged the boys to meditate to help ease their hunger and conserve energy, the mother said. He also used a torchlight to find water dripping from the cave ceiling to drink, Banphot Konkham, 45, father of Duangthep Phromthep, 13, told the outlet.

The last four boys on the 12-member team, along with their 25-year-old coach were rescued on Tuesday.