WASHINGTON D.C. -- If you're looking to make cheap weekend plans, here's some welcome news for you.

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The National Park Service says it's offering free entry to all 397 national parks this coming holiday weekend -- January 14-th through 16-th.

The free admission is part of the park service's commemoration of Doctor Martin Luther King Junior Day.

Some of the parks will also be hosting special events in honor of the holiday.

You can plan your visit by logging onto the National Park Service website.