Yes, Dyker Heights Christmas Lights is completely free to visit! Dyker Heights is a residential neighborhood in Brooklyn, New York, where many of the homes are decorated with elaborate Christmas lights displays. The neighborhood has gained a reputation for its festive decorations, and it has become a popular tourist attraction during the holiday season. While there are no admission fees or charges to see the lights, some homeowners have requested donations to support charities and other causes. But overall, it's a great place to visit and enjoy the festive atmosphere without spending any money.