Behind the gym in Blackthorn City is Dragon's Den, a place to have been the home to Dragon-type long ago.

Nowadays, the den serves as a training site for members of the Dragon Clan. Dratini, Dragonair, and Magikarp can be found in its waters, as well as the Dragon Fang item. On certain days of the week, your rival can be seen training here.

In order to obtain the rising Badge from Clair, you must travel within the Den and find the Elder's house. Inside, a man will speak with you and ask you to answer a series of questions. Should you answer with the best questions, he will reward you later with a Dratini than knowns Extremespeed.