Ep. 90: Ash and friends arrive at Pinkan Island after being swept away by whirlpools.
Aired on March 18, 1999Filler

90
Ash and his companions are carried by whirlpools to Pinkan Island, a designated Pokémon Reserve where only pink-colored Pokémon reside. Upon arrival, they find themselves stranded on this unique island. Meanwhile, Team Rocket is also washed ashore during the same incident. The trio immediately begins creating disturbances and causing trouble for the residents and visitors on the island. The group must navigate the challenges posed by Team Rocket while dealing with the unusual environment of the reserve, which is exclusively populated by pink Pokémon. The situation escalates as the antagonists interfere with the peaceful nature of the special area.
Episodes
- Ep. 86 · Ash and Misty encounter bullying teenagers and Team Rocket while protecting a baby Lapras.
- Ep. 87 · Ash, Misty, and Tracey explore Mikan Island and the unique Orange League Gym structure
- Ep. 88 · Butch and Cassidy use Drowzee to control Pokémon with signals
- Ep. 89 · Ash and friends help Marissa and Mateo find a crystal Onix from Sunburst Island
- Ep. 90 · Ash and friends arrive at Pinkan Island after being swept away by whirlpools.
- Ep. 91 · Ash and friends investigate an island composed of fossilized Kabuto beetles
- Ep. 92 · Ash and friends encounter a showboat with talking Pokémon while Team Rocket attempts theft.
- Ep. 93 · Misty's Psyduck Glows, Leading to a Battle with a Wild Golduck
- Ep. 94 · Ash and friends assist a traveling Nurse Joy healing Pokémon on small islands