Enjoy free admission to all Indiana state parks and state forest recreation areas on Saturday, Sept. 30 in honor of National Public Lands Day.

By the time Saturday rolls around, Indiana should be enjoying more seasonable fall weather, with current forecasts calling for sunny weather and a high of 69 degrees. In other words, absolutely perfect weather to get out and enjoy Indiana's beauty.

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National Public Lands Day is also a day of service. Many of the Department of National Resource properties will offer volunteer activities, including trail clean-up, weed pulling and more. Or join an organized hike or nature talk. You can find a full schedule of events here.

Allison Carter is social media editor at IndyStar. Follow her on Twitter @AllisonLCarter.