Go north to Route 24. After passing the Nugget Bridge and defeating the trainers, you will find Misty near Bill's place with some dude. He runs off, and she returns to the gym.
Where you find Misty.
you need to first go to the power plant and find out that there was a thief and then find him in Misty's gym and then interrupt misty's date on route 25
cerulean city kanto.hope it helps!
you travel the map and find it in unusual secluded places until you go to cerulean city after beating misty and it will be in the place where you find misty at first with her boyfriend
she is at cerulean cape
misty will be a gym leader in HeartGold and SoulSilver
You must chase Suicune around until you finally find him at the place where you first find Misty.
Go find Misty where the trainers are and u will see a house. Keep on going and u will see Misty with a boy.
Find a pikachu in the forest Train it until level 60-70 Teach it thunderbolt (or another electric type move) Shock Misty Easily
Misty is somewhere on Route 25.
after chasing him for awhile he ends up where you first meet misty. there you battle him until you either catch or defeat him.
After you beat the Cerulean Gym it is up on the cape where you find Misty. You have to see it at other points during the game though