Pella, a community of 10,200, is well known throughout the Midwest for its annual three-day "Tulip Festival" in May, held in honor of the Dutch pioneers who settled the town in 1847. Downtown storefronts around the square have been remodeled to resemble a Dutch community. Public recreational facilities include seven parks and playgrounds, tennis courts, indoor and outdoor swimming pools, lighted softball fields, and an 18-hole golf course. Four miles west of Pella, the Red Rock Dam across the Des Moines River has created the largest body of water in Iowa (13,000 acres). The lake is surrounded by public parks and campgrounds.