In Pokemon gold where do you go after you get your third badge?

Answer 1

In: Pokemon Silver, Gold or Crystal.

You have to go all the way north and then at the go east and into a house and get a sprinkler (or something like that) then go back to the northern path and go all the way up. and then once you are past the park and beaten the trainers, a tree will be in your way, use the sprinkler to water it (believe it or not) and it will attack, the Pokemon is a sudowoodo. now, from experience I gotta say that the only way to catch it is to majorly lower it's hp and use sleep/paralyze powder on it. then use either a Great Ball or a Ultra Ball.

In: Diamond or Pearl

You have to go to a contest and then to Amity Square. Then instead of facing Fantina You have to fight Maylene (Gym Leader) in Veilstone then Fight Team Galatic with Dawn/Lucas and then you and that Police dude will make a fake attempt to get into there Hideout and all you will find is Fly, Then fight Crasher Wake (Also a gym leader) In Pastoria, Then there will be a little part where Team Galatic blows the lake between those 2 towns you just beat the gym leaders in. you have to follow the Galactic dude and then beat him, go into that lake and to the cave (you don't have to beat all of the Team Galatic Members). All of there Pokemon are at lvl 32-35 and then theres the Commander inside the cave. I think it's Jupitar.... Anyway! I know she has a Toxicroak and a Golbat. (Be Careful, Shes the kind of Commander that could win just by tricking you out with different moves) then leave after the Commander battle and go out of the lake and Cynthia gives you a healing medicine for the Psyducks on Route 210, But first beat Fantina and then Cynthia (Also the League Champion) will meet you at Route 210 after you cure the Psyducks, She will ask you to bring a Old Charm to her Grandma, Say yes and bring it to her Grandmother, She will be in the middle of the town and then fight a single galactic member and then fight Cyrus (Hes weak right now)... And then she will tell you historical crap and give you a HM called Surf. Go to Jubilife City with Fly and then use Surf to get to the next town....

Hope I helped, and by Galatic I ment that team of criminals in the game (like Team Rocket in Kanto Versions) Sorry if you only wanted Gold, The catagories were, Pokemon Silver Gold and Crystal, Pokemon Diamond and Pearl so I just put both for you.

Bye!!!!!!!!!!!!!! Hope I Helped!!!!!!!! :)