Light Up The Lake is a two-day holiday festival around the lake and festival area at Old Settlers Park in Round Rock. Giant balloons hover over Bright Lake, a light show glows across the water, and there's live music, holiday displays, crafts and family activities to enjoy. It's a cozy, festive night out that feels like the holidays in full swing. Bring the whole crew, bundle up and take a stroll around the lake to soak in all the sparkle.