Waterfall

The waterfall is a recurring location throughout the franchise. It was either a part of the challenge for the contestants, or a background location. The most notable waterfall is located at Camp Wawanakwa, appearing in four seasons.

Real waterfalls
During Total Drama World Tour and the spin-off series, a few waterfalls that exist in real life appear as well, those being Niagara Falls and Victoria Falls. Dunn's River Falls are also mentioned in Jamaica Me Sweat, though it is not visited.

Total Drama Island
In the intro, Leshawna and Heather are seen slapping each other while sitting in a raft, until they fall down the waterfall. Directly in front of the waterfall, Harold is seen practicing some sort of fighting, until Izzy swings on a vine and crashes into him.

The waterfall makes its first episode appearance in The Big Sleep, where Owen is seen floating with the fish at night. He floats from the bottom of the water to the top, while sleeping.

Total Drama Action
In Top Dog, the waterfall appears when Courtney fights the sharks after losing her PDA. Mad by this, Courtney proceeds to jump in the waterfall after the shark does so, holding her PDA.

Total Drama World Tour
In Jamaica Me Sweat, the first half of the challenge takes part on a waterfall. The teammates must tag each other, then one at a time dive into the lake and search for Chef's gold karaoke chains, while watching out for electric eels and sharks.

In Niagara Brawls, the beginning proceeds with the contestants falling on some swan boats out of the plane, dangerously having to escape out of the waterfall. The waterfall also takes a huge part in the second half of the challenge, where  the couples must walk over Niagara Falls, on a tightrope, with the grooms carrying their brides, and for a dangerous twist, Chris added some sharks to the water below the Falls. The challenge starts, and Heather and Alejandro argue over who will be eliminated. After Heather's bickering, Alejandro "accidentally" loses his balance, sending him and Heather falling into waterfall. After Sierra and Cody are rejected by the Chef, the two then run into Owen and Blaineley on the tightrope. As neither of them wish to move back, they all end up falling into the water after Sierra kicks Owen in the knee and pulls Blaineley's hair extensions for upsetting Cody. In the end, all the contestants except for Duncan and Courtney try to escape from the sharks, while Owen swims carrying them all.

Total Drama: Revenge of the Island
In the intro, Mike and Zoey are seen together on a canoe before they fall down the waterfall. Directly in front of the waterfall, Lightning is seen exercising.

In Bigger, Badder, Brutal-er!, the waterfall appears where both of the teams have to jump over it.

Total Drama All-Stars
In the exclusive clip of The Bold and the Booty-ful, Gwen and Scott ended up at Niagara Falls after taking the Flush of Shame. The clip ends with the two of them falling off the waterfall, seconds after realizing where they are.

Total Drama: Pahkitew Island
Pahkitew Island also has a waterfall. It can be assumed that the waterfall is artificial, similar to the rest of the island.

In I Love You, Grease Pig, a waterfall can be seen in the background after the pig reaches the zipline and Shawn jumps in after it.

Total Drama Presents: The Ridonculous Race
In Brazilian Pain Forest, when Mickey and Jay accidentally fall from the vine, a waterfall can be seen in the background.

In My Way or Zimbabwe, the teams must take a raft down the waterfall in Zimbabwe and take a selfie of them and their partners.

Camp TV
During the trailer, the waterfall appears when Geoff and Tyler are seen being happy while high-fiving on a float, proceeding after then to fall, scarily looking into the camera.

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