Lost golden retriever named Charlie around the neighborhood park in Southern Maryland.

I lost my adorable golden retriever named Charlie around the park by my neighborhood in Southern Maryland. He dug out underneath the fence and we’ve been searching for him everywhere. He’s about two years old, weighs 70 pounds, and is super friendly, but can be skittish around strangers. I’d be incredibly grateful if anyone has seen him! Please help me bring my boy home.