There's no excuse not to get outside this Saturday. It's National Trails Day and admission to all Washington State Parks will be free.

Passes usually cost $5 per day to use trails in national forests.

Washington Trails Association: Hikes 30 minutes from Seattle

The annual day is sponsored by the American Hiking Society.

Other free days coming up are June 10 (National Get Outdoors Day) and Aug. 25 (National Park Service Birthday). Check out the full list from the Washington Trails Association.

So, where are you headed this weekend? Tell us about your favorite hiking spots on our Explore the PNW! Facebook group! Share your photos with us on social media using #k5explore.