Part 13: Beat Misty — Cerulean City Gym, badge 11

the Super Rod (Route 12 — Super Rod House)

Beat Misty — Cerulean City Gym, badge 11 opens 1 area. There are 4 trainers standing in it. The fight at this checkpoint is Misty.

Where to go

1. Cerulean City Gym

   Trainers: ★ Misty Lv 47, Swimmer♀ Briana Lv 35, Swimmer♀ Diana Lv 37, Swimmer♂ Parker Lv 35

★ Misty — Cerulean City Gym

4 Pokémon · level cap Lv 47 (every cap) · Misty’s own page

	Pokémon	Moves
	Golduck Lv 42	Surf Disable Psych Up Psychic M
	Quagsire Lv 42	Surf Amnesia Earthquake Rain Dance
	Lapras Lv 44	Surf Perish Song Blizzard Rain Dance
	Starmie Lv 47	Surf Confuse Ray Recover Ice Beam

Everything you can have caught by this checkpoint · Open the interactive guide

It also doesn't say when 5 of its areas open up, so they are listed together in the last part rather than guessed into the story.