Free pass to Mark Twain Lake

Clarence Cannon Dam and Mark Twain Lake

A day at the beach doesn't cost much at

Mark Twain Lake

. The rate is $4 maximum for a carload of people. If you're going solo, it's just a buck.

If you head to the beach or launch a boat Sept. 29, it won't cost you a thing. It's the

U.S. Army Corp of Engineers

way of saying thanks to supporters of its park lands.

The USACE will waive day-use fees at its more than 2,400 USACE-operated recreation areas nationwide in recognition of

National Public Lands Day

, Sept. 29. On this day, fees normally charged at boat launch ramps and swimming beaches will be waived. USACE does not charge entrance fees to its parks. The waiver does not apply to camping and camping-related services, or fees for specialized facilities such as group picnic shelters.

USACE has been involved with National Public Lands Day since its inception in 1994 and has consistently been one of the eventâ??s largest providers of sites and volunteers. As the nationâ??s leading federal provider of outdoor and water-based recreation, USACE manages 422 lake and river projects in 43 states. With 90 percent of these projects located within 50 miles of metropolitan areas, USACE sites aim to provide a wide range of safe, affordable outdoor recreation opportunities close to home.