Go to the Kanto region and try to beat their 8 gym leaders.
defeat all the other gym leaders
go to serebii.com it tells how
To get all 16 badges in Pokémon Gold you need to first beat the 8 Gym Leaders of the Johto region and then defeat the Elite Four and the Champion of the Johto region in order to become its Champion and unlock the Kanto region and then in order to get the remaining 8 badges you will need to beat the 8 Gym Leaders of the Kanto region.
actually there isn't 9 gym leader there is only 8 like the other ones. Actually, the 9th gym leader in heartgold and soulsilver would be the first gym leader in Kanto after you beat the elite four the first time, you can face the kanto gym leaders in any order.
beat all 7 gym leaders and go to viridayan city gym
14. 8 in the Jhoto region & 8 in the Kanto region
Sorry don't have Pokemon Silver. And i am pretty sure there are only 8 gym leaders. Update: There are technically 16 gym leaders. Once you beat the main 8 in Johto, you're allowed to go to Kanto to defeat the Elite Four -- while you're there, you can access 8 bonus gym leaders to get the 8 Kanto badges. However, there still aren't 13 gym leaders in total.
after you beat all 8 kanto gym leaders
Go to the Kanto region and try to beat their 8 gym leaders.
well you beat all 8 johnto gym leaders and then get to kanto and go to lavender town idiot
somewhere
8 gyms in Johto 8 gyms in Kanto 8+8=16 16 gyms
you have to go to every gym in kanto a beat all the gym leaders
Beat all 8 gym leaders in the Kanto and professor oak will give you it
Elite Four
The Kanto gym leaders are located in most major cities. Be sure to look out for the gym signs. They will usually be located in the middle of the large cities. There are some cities that do not have gym leaders, however.