Program Information Knott???s Berry Farm is Cedar Fair???s only park that???s open year round. With 150 acres of rides, shows, and family attractions, Knott???s celebrates the lore of the Old West. The park???s attractions include Silver Bullet, a 3,000 foot long coaster with ski lift seating, Xcelerator, a 50???s themed roller coaster, and the 300 foot tall Supreme Scream.