The 15 Most Terrifying Water Slides In America

The floor drops from under you and, before you know it, you're plummeting down pitch-black tunnels, at high speeds. There are amusement park rides that are so dangerous, most adults are too scared to hop on them.

*Related: The Scariest and Most Thrilling Roller Coasters Around the World

But these waterslides take the cake. Imagine freefalling, then twisting and turning without knowing what's going to happen next, or shooting through tunnels at speeds up to 40 mph.

These slides are located all over America; however, the most terrifying are in Oregon, Florida and Indiana, just to name a few.

Continue reading for the most terrifying water slides in America.

Located in Evergreen Wings & Waves Waterpark is the terrifying Boeing 747. This park is aviation-themed; Boeing 747 features four custom designed Inner-Tube and Body waterslides that descend from a plane's back exit doors. While you are there, enjoy the waterparks indoor facility. Click here for more information.

Enter Rapids Water Park for the ride of your life. Big Thunder is a multi-person raft waterslide that takes you through a series of sharp turns and dark tunnels. There is a full 45-degree drop that accelerates the raft into a funnel, sliding at approximately 20 mph. Rapids Water Park gave this ride a "wild" Thrill Rating.

Just because it's Disney World doesn't mean there aren't some terrifying rides. Summit Plummet is located in Disney's Blizzard Beach Water Park; it's a near-vertical drop on one of the "tallest, fastest freefall body slides in the world." For more information click here.

Black Anaconda is by far one of the most thrilling and terrifying water coasters in the world. It is located in Noah's Ark Waterpark. The slide is approximately ¼ miles long and reaches speeds of up to 30 mph. This ride is a mix between a water slide and a rollercoaster. Click here to see the ride in motion.

Also located in Noah's Ark Waterpark is the 400-foot-long Scorpion's Tail. The first drop sends you plummeting at over 50-feet per second. Prepare for the ride of your life as you slide through the rest of this thrilling slide.

The name of this water slide says it all – the slide is 256-feet long and towers 56 feet in the air. The colors are red and white, making for a dramatic effect. You can race your friends down the twin tracks of the coiled tail or slide right up to this snake's mouth alone. The body of the Cobra shoots you out and then the snake head swallows you whole. Visit Six Flags Hurricane Harbor for further ride details.

Schlitterbahn Water Park is home to the Screaming Serpents – a high speed body waterslide that sends you down through the mouth of giant sea serpents. Experience thrilling light effects, sounds and splashes. Fun Fact: This ride has been seen on Travel Channel's Xtreme Waterparks.

Located in the Black Snake Summit of Six Flags Hurricane Harbor are these 75-foot high waterslides. These are the tallest enclosed water slides in Southern California. They are side-by-side and curve around each other. Enjoy fast speeds and tons of curves in complete darkness.

Located in Wet 'n Wild is the thrilling Bomb Bay waterslide. This slide was named after bomb bays on military airplanes, which release bombs. Riders begin at 76 feet high and are sent down an approximately 90-degree freefall.

Located in Camelback Resort is the famous Aquatopia Indoor Waterpark. The Venus Slyde Trap devours riders on a three-to-six person family rafting tube. It is 600-feet long and has a record-breaking sphere and open "manta" wall ride. The ride begins with riders speeding down an enclosed serpentine flume. They are then injected into a 16-foot sphere where they slide around 90-degree turns and are quickly plunged into darkness. Click here to see the slide in motion.

Action Park Mountain Creek features the terrifying Zero-G – the world's tallest and only double-looping waterslide. It stands at 100-feet tall on top of a hill. You can't prepare yourself, the trapdoor opens unexpectedly and sends you plunging down the flume and spiraling through all the way down.

Located in Holiday World and Splashin' Safari and voted the best in America in 2014, is the Wildebeest, the park's first HydroMagnetic Rocket coaster. This ride is one-third of a mile long and consists of a series of drops, twists and turns. It starts with a four-story drop, takes you through underground tunnels and around a helix, and reaches speeds of 36-feet per second.

Holiday World & Splashin' Safari is home to The Mammoth – a six passenger water coaster that towers seven stories from its highest to lowest point. The ride begins with a conveyor ride up a lift hill. Enjoy extreme drops, downhill thrills and 12-foot-wide channels and tunnels through complete darkness.

Get ready for the adrenaline rush of your life. Six Flags Fiesta is home to the Bahama Blaster – an extreme slide that launches you at speeds up to 40 mph. The ride begins in a launching capsule where you are unexpectedly dropped and sent free-falling down six stories. Enjoy a series of looping spirals, turns and twists.

Six Flags Over Georgia is home to the first hybrid zero-gravity single slide combining two slide thrills. Riders are sent down a five-story drop and spun at 360 degrees. They then make their way to an enclosed tube where they "will feel a moment of zero-gravity, or weightlessness, before hitting an embankment and landing in the splash pool below."