The Joy of Water Pokémon (Japanese: みずポケモンぎらいのジョーイさん！？カスミのいかり！The Nurse Joy Who Hates Water Pokémon!? Kasumi's Anger!) is the 206th episode of the Pokémon anime. It first aired in Japan on July 12, 2001 and in the United States on August 24, 2002.
The Nurse Joy at Lake Lucid's Pokémon Center is famous among Water-type Pokémon Trainers, so Misty is thrilled when our heroes' travels take them to the lake. Lake Lucid's Nurse Joy is the third generation of Nurse Joys who have turned Lake Lucid from a toxic pool to a crystal-clear lake where Water-type Pokémon come to rest and recuperate, and she's one of Misty's long-time heroes.
Everything goes swimmingly until Misty asks Nurse Joy to examine her Water-type Pokémon. This Nurse Joy actually hates Water-type Pokémon, and she's hated them ever since some Remoraid frightened her when she was a child! Even though Nurse Joy says she still understands Water-type Pokémon and doesn't let personal feelings impair her ability to do her job, Misty refuses to believe a word of it. She's angry and distraught that her idol doesn't even want to touch Water-type Pokémon without putting on a special protective suit.
Misty's tour of the Pokémon Center is interrupted by Team Rocket, who burst in with a beat-up Tentacruel submarine and try to steal the Center's Pokémon. They're soon defeated, but Nurse Joy's protective suit is lost and a Gyarados becomes agitated when its tank is destroyed. As the only one with the training and experience to handle the situation, Nurse Joy steps up and calms Gyarados down, suit or no suit—she may hate Water-type Pokémon, but her duty takes precedence over fear. Even though Nurse Joy isn't magically cured of her hatred for Water Pokémon, Misty realizes she may have judged too harshly and leaves with a newfound respect for Nurse Joy's dedication.
Ash and his friends stare upon a Pokémon Center across a fairly large river. It seems to be popular for its specialty of caring for Water-type Pokémon. As they look, Pikachu notices something from the water, which a person in a full scuba suit holding a Goldeen comes out. The person speaks and two Chansey come along with a fish tank. Given the sign, Nurse Joy is behind the suit. She puts the Goldeen in the tank and the suit opens up the top half part. Brock does the usual thing he does whenever he encounters a Joy. Misty seems to look up to her as well, because of the specialty of caring for Water Pokémon. Joy goes off mentioning her work to them, and gives a short admiration of Pikachu for a while.
Soon afterward the Pokémon appear to be fighting, but in reality seemingly Pokémon training or of some sort. They seem to be using the same ability on one another. Team Rocket is spying on them a little ways, in a Tentacruel submarine. They plan to get the Pokémon in the center but are cut short when a Tentacruel mistakes them for another.
Brock gets out a book that has a story written by a Joy, but really it was written by the current Joy's grandmother. She explains that this place used to be a wasteland, uninhabitable by anybody and that she was finding out the cause. Brock asks her to sign the book but Joy doesn't want to do so. Brock gets out another book written by a Joy, but that one was Joy's mother. She explains that she helped the Grimer and Muk that poisoned the area get out. But seemingly, enough with the small talk, just want to get business over with.
Meanwhile Team Rocket, still in their Tentacruel sub, finds their way into the Pokémon Center via a pipeline.
Pikachu gets a refresher from the healing machine and settles to Ash. Misty wants her Pokémon treated so she asks Joy if she would. Surprisingly, Joy backs away scared, leaving everyone puzzled. She goes off saying that she hates Water Pokémon quite a few times. So finally she explains about what happened. She was out with her mom looking over some Water Pokémon by the river in a boat. A Remoraid popped out and squirted her in the face for a while and Joy (younger one) fell into the water. Joy's mother tried to help but more Remoraid gathered around and squirted Joy back up. Joy's mother tried to tell her that it was alright, but Joy couldn't seem to get the fright out.
Joy can't seem to help out Misty and Misty is starting to get annoyed by that. But in the mean time, they go over to where most of the Water Pokémon are and take a look around. Scanning around are a Goldeen, a Tentacool, few others and at the end, a Gyarados, who seems to have a "neck" problem.. They are in separate tanks with a large pool in the middle. Misty shudders at Gyarados, but Ash likes Gyarados for its power. Joy agrees with Misty and they go on with that for a while. When all of a sudden, Team Rocket appears from the pool, fooling Ash with the Tentacruel disguises. They go off with their motto, being fancy and trying some water acrobatics. Finally they hop back in and attempt to grab Pikachu, but Pikachu dodges. So Team Rocket grabs Pikachu with the rest of the tentacles and try to go off, but Pikachu does Thunderbolt. Jessie and James start talking about how obviously this wasn't a good idea and Wobbuffet comes out, starting off a shock to all of them, blowing the sub up. A few pieces of debris fly, one hits Gyarados's tank and another hits valve opening to the outside. Team Rocket get flushed out along with Gyarados's water and Joy's scuba suit.
Gyarados starts writhing in pain for a while. Joy takes a stand and decides to help out Gyarados for now, even without her suit. She goes up but gets butterflies in her stomach, but she persists. She calms Gyarados down and the Chansey get another cast for Gyarados and place it on. Soon afterward, Joy collapses from holding all that shock. Afterward, Joy still says she doesn't like Water Pokémon, but as a Pokémon nurse, she has to try her best. Misty gives her some encouragement and the gang heads off to their destination.
When Nurse Joy says "Heaven does not build one Pokémon above a Pokémon, nor a Pokémon under a Pokémon." is a reference to a line from the famous Japanese author and teacher Fukuzawa Yukichi, "Heaven does not build one man above or below another man".
When the two Dewgong are battling they say "Seel" instead of "Dewgong".
During the ending scene, while Misty is walking, there are only two red straps on her shoulder. But when the show zooms in on her, a blue strap appears on her shoulder.