Lakeside Amusement Park’s Memorial Day special lets you visit twice for one price. Here’s the deal: Buy gate admission and an unlimited ride ticket at regular price ($25) today, Monday, May 30 and they’ll give you a FREE gate admission and unlimited ride pass for use on any public day in August. Not only is Lakeside famous for its Cyclone coaster, but the park is also family-friendly with a merry-go-round, bumper cars, spinning rides and Kiddie’s Playland. The park opens at noon all three days. Parking is FREE. Sheridan Blvd. just south of I-70, Denver, 303-477-1621.