The city of Salem in south Utah County lights Salem Pond for Pond Town Christmas: large Christmas trees and displays set on and around the pond, glowing in reflections off the water, with a whale display at one end. You can drive the loop around the pond or walk it. Free, and beloved as a low-key small-town display.
Official site ↗Utah Valley - Pond Town Christmas ↗
Save it to a route and find nearby decorated homes in the Noelly app.