The Clear Lake Chamber of Commerce and Adventist Health Clear Lake have partnered to sponsor the competition that urges businesses to light up for the holidays.
The contest covers the south county towns of Middletown, Hidden Valley Lake, Lower Lake, Clearlake, Spring Valley and Clearlake Oaks/Glenhaven.
Judging will take place on Monday, Dec. 19.
The first place prize is $1,000, second place is $500 and third place is $250.
To enter your business with the Clear lake Chamber of Commerce call 707-994-3600 or email