You do that after you defeat Claire in the gym
go to the dragon den
Go to the Dragon's Den and take the test from Lance
Go to professer elm's after you battle him (rival). and his agent dude will talk to you about him.
If you go into the Dragon's Den and surf around, or use a Good Rod, you might get one.
you go to the dragon den 8-) (walk around. it will take some time. they are rare.)
First you have to do the tag battle with Silver against her and Lance. To do this, you first have to fight Silver at Mt. Silver, and then go to the Dragon's Den to initiate the battle. After you've done that, go to the Dragon's Den between 6AM and 10AM and talk to her.
I believe you go to the Dragon's Den behind the gym in Blackthorn. You go to the Dragon Master and he asks you questions and you get the Blackthorn City Gym Badge, and are permitted to go to the Pokemon League.
Dragon's den in Johto, You'll then fight Clair and Lance with the Rival
After he goes to Mt. Moon he'll go to Dragon's Den, then to the Indigo Plateau, just up the first flight of stairs.
to new bark town then surf right to kanto/tohjo falls
If you mean 'What does Clair say after you defeat her in Pokemon' Basically, go to the Dragon's Den. On Gold/Silver: Surf to the Dragon's Den, behind the Blackthorn gym. Find the Dragon Fang. You'll need HM06-Whirlpool. Then she'll come to you and give you the badge, and TM24-Dragonbreath. On Crystal; Go to Den, and find the shrine. Take the test, then she'll give you the badge and TM.
First you have to go into Dragon's den behind the eighth gym in jhoto. go down the latter and into the water. Surf around and a wild dratini will show up.