Ha Ha Tonka State Park has castle ruins sitting above 48 million gallons of blue-green water

Ha Ha Tonka’s ruins aren’t what you’d expect

You don’t expect to find castle ruins in Missouri.

But Ha Ha Tonka State Park has them, and they sit on the edge of a 250-foot bluff above a spring that pumps 48 million gallons of water a day in a shade of blue-green you’d swear was photoshopped.

The park covers more than 3,700 acres near Camdenton, and it costs nothing to get in. What you find inside takes a lot longer to explain.

Walk the ruins of Missouri’s only castle

The stone shell of an early 1900s mansion anchors the park, and you can walk around three sides of it on a paved 0.4-mile path that works for wheelchairs and strollers.

From the top, the Lake of the Ozarks spreads out below you, and if you look straight down, you can spot Ha Ha Tonka Spring far at the base of the bluff.

Stone ruins of a carriage house and an 80-foot water tower still stand nearby, both quarried from rock pulled right off the property. It’s the only structure like it in Missouri’s state park system.

The mansion burned, but its story didn’t

A Kansas City businessman started building the stone mansion in 1905. He died in 1906 before it was finished.

His sons completed a simpler version by the early 1920s, and the property later ran as a hotel until a chimney fire gutted the interior in 1942.

Missouri bought the land in 1978 and turned it into a state park.

The name “Ha Ha Tonka” comes from the Osage language and translates roughly as “laughing waters,” a nod to the natural springs running through the property.

Conde Nast Traveler later called it the most beautiful place in Missouri.

Blue-green spring water that flows into the lake

Ha Ha Tonka Spring ranks as Missouri’s 12th largest, releasing more than 48 million gallons of water every single day.

The color comes from the minerals in the water, and you’ll see it the moment you round the last bend on the Spring Trail boardwalk. The path takes you right to the spring’s edge at the base of the bluffs.

Swimming and fishing aren’t allowed in the spring itself, but you’re not there to fish. You’re there to stand next to something that’s been running for thousands of years and look at the color of that water.

Climb 316 steps from the spring to the ruins

Between the spring at the lake level and the castle ruins at the top sits a wooden staircase with 316 steps covering about 200 feet of elevation.

It circles the spring chasm on the way up, so the views change with every switchback. Most visitors call it the best workout in the park.

If stairs aren’t your thing, you can drive to the upper parking lot near the water tower and walk a short, flat path to the ruins instead. But the staircase gives you the full picture in a way the parking lot never will.

Duck under a stone arch 100 feet in the air

The park’s natural bridge is 70 feet wide, spans 60 feet, and rises more than 100 feet off the ground.

Water carved through the limestone over thousands of years until the surrounding cave system collapsed, leaving the arch standing on its own.

The Colosseum Trail takes you directly underneath it, and standing below the arch looking up gives you a sense of just how much rock is hanging over your head.

A small picnic area with tables and grills sits near the natural bridge parking area if you want to stop and eat with that view.

A sinkhole the size of a city block

Just past the natural bridge, the ground opens into the Colosseum, a sinkhole that measures 500 feet long and 300 feet wide. An underground cavern collapsed to create it, leaving sheer rock walls rising on all sides.

The Colosseum Trail loops through it in about 0.7 miles, and local history says the space was once used for church revivals, which makes sense once you’re standing inside it.

The trail can get muddy after rain in spring, but it’s manageable for most people with decent shoes.

A cave shelter, wildflowers, and a 150-foot drop

The Devil’s Kitchen Trail winds through wildflower fields and open woodland before dropping into a sinkhole with a small cave shelter at the bottom, plus a dramatic rock overhang called the Devil’s Promenade above it.

Not far away, the Dell Rim Trail follows a short wooden boardwalk to an overlook above Whispering Dell Sinkhole, a 150-foot-deep collapse in the earth that you look straight down into.

The boardwalk section takes almost no effort, and the view down is one of the most dramatic in the park.

More than 15 miles of trails, color-coded and mapped

The park has more than a dozen trails covering over 15 miles, from paved paths at the ruins to rugged backcountry routes through the woods.

The most popular combination runs about 2.1 miles via the Dell Rim and Spring Trails to Deer’s Leap Hill, where a clifftop gives you lake views in both directions.

The Turkey Pen Hollow Trail is the longest at roughly 6.5 miles, winding through oak woodland the whole way.

Trail maps are free at the visitor center, and your dog can come along on any trail as long as you keep a leash.

Paddle a river past a cave and a tunnel dam

Kayak rentals run from April through October, and the no-wake zone around the park makes for a relaxed paddle with bluff views from the water.

If you want more distance, the Big Niangua River Trail covers 13.5 miles and passes Onyx Cave, the Tunnel Dam Powerhouse, and Whistle Bridge along the way.

The park has two public boat docks, one near the picnic shelter and one on the north side of the cove. You can also bring your own kayak, canoe, or boat and access the park directly from the water.

Oak trees that were old when Missouri became a state

The park preserves one of the finest remaining oak woodlands in Missouri, with individual trees topping 300 years old.

The Ha Ha Tonka Savanna stretches across open rocky glades with prairie grasses and wildflowers, giving you a picture of what this land looked like before European settlement. More than 400 plant species grow inside the park.

White-tailed deer, foxes, raccoons, woodpeckers, warblers, and hawks all live here. Wildflowers run from spring through summer, and the fall color peaks somewhere between late September and October.

Free to enter, with 20 picnic spots and no crowds if you’re early

Ha Ha Tonka charges no entrance fee and no parking fee, and the grounds stay open daily from 7 a.m. to sunset between April and October, and from 8 a.m. to sunset the rest of the year.

Twenty picnic areas are spread across the park, with two shelters available to reserve for groups. Fishing runs under standard Missouri regulations at the lake access points inside the park.

The visitor center has a topographical map of the park carved from stone and naturalists who can answer questions. The park draws more than half a million visitors a year, so get there early on summer weekends.

Visit Ha Ha Tonka State Park in Missouri

Ha Ha Tonka State Park sits at 1491 State Road D in Camdenton, Missouri, about five miles south of town. It runs about three hours from both Kansas City and St. Louis, and around an hour and a half from Springfield.

There’s no admission fee. Kayak rentals and group shelter reservations are available for a fee.

The grounds open daily, with hours shifting seasonally between 7 or 8 a.m. and sunset.

Check the official Missouri State Parks website for current rental rates, shelter availability, and trail conditions before you go.

This article was created with AI assistance and human editing.

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