Zilker Park trades its usual green backdrop for millions of lights at Austin's Trail of Lights. Walk among illuminated displays, pause for seasonal food and enjoy a festive evening with friends or family during the public 7 to 10 p.m. hours. General admission is free on selected nights and paid on others, while early-entry upgrades and parking are separate purchases. Choose your date carefully before heading out, and leave pets at home unless they are service animals. It is a walking outing.