From Hellertown’s Light Up Night and Nazareth’s Tree Lighting to the Tree and Bridge Lighting at Covered Bridge Park in South Whitehall Township, locals and visitors alike gather to celebrate as switches are flipped to illuminate the towering firs. Special ceremonies mark the tree lightings that start as early as mid-November. Throughout the holiday season, Allentown, Bethlehem, Easton, and the surrounding communities glow with trees decked out in lights and seasonal decor.