The communal bathrooms on Camp Wawanakwa include rows of toilet cubicles, shower cubicles, and sinks. The facilities are not separated by gender, and usually the different sexes wait for their turn.
In Paintball Deer Hunter, Heather hogs the bathroom in the morning, forcing the other girls to line up. Eventually, Gwen leaves to do her business "lumberjack style".
In Search and Do Not Destroy, Geoff's key is located inside one of the toilet and he has to dive into it in order to locate it. Later on, Leshawna rigs the pipes to pump sewage into the bathroom while Heather is using it.
In Hide and Be Sneaky, during a flashback, Leshawna, Heather, and Gwen are using the communal bathrooms, while DJ and Owen are waiting outside listening. Heather proceeds to turn on the cold water while Gwen is using the shower, causing her shower water to be too hot. Leshawna retaliates by slapping Heather and the two girls fight. At first DJ and Owen laugh, but later leave once the fight gets too intense. Later, Lindsay hides inside one of the stalls until Chris tells her to choose a different one.
In Hook, Line, and Screamer, Heather decides to ignore Gwen's warnings and have a facial during the "horror movie" challenge. Later on, DJ has to use the toilet and has Geoff wait outside so the killer doesn't sneak up on him. DJ then finds Heather wearing a facial mask, draped in a towel, and shaving her legs. The sight utterly terrifies him, despite Heather trying to calm him down and he ends up running through the closed door, leaving a hole behind. Gwen then arrives to check out the screaming. Heather declares she would take a shower, which Gwen is about to advise against. However after she remembers it's Heather, Gwen decides to let Heather do whatever, and mockingly comments that her current appearance suits her. As Heather is about to take a shower, she hears someone being outside.
In Wawanakwa Gone Wild!, the penalty for the contestant who came in last is to clean the communal bathrooms, which are particularly filthy since Owen had used it. The duty falls to Heather who failed to finish the challenge, but she ends up recruiting Duncan due to her paralysis. Duncan ends up cleaning the communal bathrooms while Heather waits outside, her paralysis having worn off, but still pretending to get Duncan to do the work for her.
In I Triple Dog Dare You!, one of Gwen's dares is to drink powdered fruit punch out of a communal toilet through a straw. Gwen accepts the dare, and vomits after performing it.
In Total Drama, Drama, Drama, Drama Island, the communal bathroom is briefly seen in a few cameos. Izzy, Noah, and Eva are seen hiding behind it waiting for Justin, however several contestants run past due to a moose chasing them. Justin then parachutes in front of the communal bathrooms, where Izzy's group ambushes Justin. Noah and Eva are positioned on the roof dumping buckets of chum on him, while Izzy steals the million dollar case back from him. Later on, Beth, Lindsay, and Ezekiel are seen walking out of the communal bathrooms.
In Full Metal Drama, several contestants wait outside a cubicle, while Owen takes a very long time to use it.
In Rock n' Rule, Lindsay is seen leaving the communal bathrooms after taking a shower, while singing a song very badly.
In Runaway Model, Jo, Zoey, and Anne Maria are using the communal bathroom, while Cameron and Mike wait outside busting to go to the toilet. Anne Maria proceeds to make fun of Zoey as she is fixing up her hair. Jo then disgusts both girls by shaving in front of them, off-screen.
In Eat, Puke and Be Wary, Chris gets snagged by one of Scott's traps and is thrown into the communal bathrooms, where he remains for the duration of the episode. The interns get revenge on Chris by flooding the bathrooms with sewage.
- While the communal bathrooms never appear in Total Drama All-Stars, they were presumably destroyed along with the rest of the facilities when the island sinks in The Final Wreck-ening.