 How old is he? 34. 34. Hard 34. His mother looks like she's in her 30s. Maybe 40s. She didn't go hiking with him, though. Obviously. It was Tuesday when 34-year-old Lucas McClish went for a hike in Boulder Creek and ended up getting lost. I felt comfortable the whole time I was out there. I wasn't worried about it. I had a mountain lion that was following me.