Growing up, Oliver said his friends thought it was “cool” and he even filmed a music video with his band in the caves.
“I think it was more when I went to university, you got people asking what your parents do,” he added.
“When I said ‘oh, we have a cave’, the look on people’s faces was quite interesting.”
After graduating with a psychology degree, Oliver started to help run the business alongside his mother, Lisa Bowerman.
She recalled being on holiday when she revealed to her three children they were buying a tourist attraction with a cottage attached.
“They didn’t even know what a cave was.”