Assuming you've gotten 13 badges in Gold Version:
Go to the Snorlax blocking the path to the south-east of Verillian City, go to the PokeRadio and tune it to "PokeFlute" once its on PokeFlute walk back up to the snorlax and click A. It should awake now and attack you. (don't forget to save before you battle, Snorlax is level 50 and a good addition to your Pokemon team)
If this is not what you mean by where do you go, I'm sorry, the question was a little vague
Misty is the 2nd gym leader in the Kanto region in Pokemon Crystal. After you bear her, make your way to Vermillion City.
well i dont know do i?
You can find Misty in Pokémon Crystal in Kanto Region. You will find her north of Cerulean City where she is with the man she is dating.
It will be in misty's gym close to the entrance.
route 25
Some options that could beat Misty's last Pokemon would be either the Razor Leaf, Vine Whip or Solar Beam attacks.
you go to cerulean city and beat misty.
After you defeat Misty, You can go catch suicune by Bill`s house.
she's with her boyfriend near bill's house by the water of course. Keep in mind the is in Cerulian city
Once you beat the Pokemon League at the Indego Platue, you will be able to go to Kanto and see Misty.
beat misty in second gym
Use a electric type or grass type Pokemon to beat her.
This can actually happen. For example your playing Pokemon yellow and you only have pikachu as a Pokemon, you will not be able to beat brock not matter what level pikachu is, but misty can be defeated because pikachu's electric type moves are strong against water type Pokemon.
after you get the macine part and return it you go up to bill's house