In case you hadn't heard, we're pretty head-over-heels for The Bluegrass State. Kentucky is one, big wondrous place to behold, and we do our best to really showcase the immense splendor of the state. Happily, not only does Kentucky offer some truly bucket-list-worthy adventures, but many of these spectacular places are free and open to everyone. Come and let your sense of wanderlust lead the way as you enjoy these seven natural wonders in Kentucky that you can witness for free.

1. Red River Gorge

One of the most iconic places in the state, Red River Gorge is the Holy Grail of outdoor recreation and adventure. Known as the "Grand Canyon of Kentucky," Red River Gorge is a canyon system along the Red River in the eastern part of the state. Admission to Red River Gorge is free; however, if you plan on camping, you’ll want to note that vehicles on KY-15 or in the Red River Gorge and Indian Creek area north of KY-15 must display a recreation permit for backcountry camping between the hours of 10 p.m. and 6 a.m. Permits are $3/day or $30/year and can be purchased at the Cumberland District Office.

2. Natural Bridge

If you're looking for a hike that the whole family can enjoy, Natural Bridge is one of Red River Gorge's most spectacular spots and offers 10 hiking trails ranging from a half-mile to 7.5 miles in length. Formed over millions of years, the park's eponymous sandstone arch stretches more than 75 feet long and 65 feet high. With stunning geological features and sweeping panoramas, Natural Bridge is one of the most popular outdoor destinations in the region.

3. Mammoth Cave National Park

The longest cave system in the world, Mammoth Cave is a true Bluegrass treasure. Mammoth Cave National Park stretches almost 53,000 acres in the rolling hills of Kentucky, and includes numerous river valleys, forests, historic sites, sinkholes, and, of course, the titular caves. There is an incredible variety of activities for visitors throughout the park year-round. Entry to Mammoth Cave National Park and its surface features is free of charge; there is, however, a charge for cave tours, camping, and other activities. But if you ask us, it's worth it.

4. Kingdom Come State Park

The aptly-named Kingdom Come State Park really is one of Kentucky's most glorious wonders. With an elevation of 2,700 feet, this state park, located in the Pine Mountain range near Cumberland, offers some of the most perfect panoramas you'll ever see. But this park is also home to some of the most spectacular geological formations in the state (and this is Kentucky we're talking about, so that's saying a lot!). Notable formations include Log Rock (pictured here), a natural sandstone bridge, and Raven Rock, a giant rock exposure that soars 290 feet into the air -- at a 45-degree angle! Come, and be dazzled.

5. Big Bone Lick State Park

A hidden gem located in the northern part of the state, Big Bone Lick State Park is a place where past and present meet. Known for its grand herds of bison, you'll marvel at these benevolent beasts, the largest of all North American land mammals. Great bison herds once roamed the region and provided food, clothing, and shelter for the American Indians and pioneers. Hunted to near extinction, the last of the wild bison was seen in Kentucky around 1800. The bison herd today harkens back to the park’s prehistoric past and serves as the only living mammalian link to the Ice Age.

6. 76 Falls

While Cumberland Falls is magnificent, it's not the *only* stunning cascade in the state. Also located in Lake Cumberland, 76 Falls is a breathtaking beauty that flows rushes the lake, in its own little cove that's perfect for enjoying some low-key water recreation. The splendid 76 Falls really is a total hidden gem.

7. Cumberland Falls

Admission to all Kentucky State Parks is free, and the acclaimed Cumberland Falls State Resort Park is no exception. Here you'll find the magnificent Cumberland Falls, a jaw-dropping wonder that is positively sublime to behold. Visit during one of the moonbow occurrences (which happen several times each month), and you'll be rendered absolutely speechless.

Kentucky really is beautiful, and we hope you're inspired to explore all of these breathtaking natural wonders! For more adventures around The Bluegrass State, be sure to check out these six unforgettable road trips that each lead to some seriously spectacular places.