The third gym leader is Fantina, and she is in Hearthome city. The only way to get there is from oreburgh going through mt. coronet. Hope it helped.
Once you get the 2nd badge and HM cut go to a small tree that is blocking your way press start and go to Pokemon choose the Pokemon that knows the move cut select Cut and the tree will be gone.
you need to go to vermillon city and go on the ship. (remember, you need a ticket. to get the ticket, go to bill's house in cerulean city). there, you will need to get the captain. the captain is sick so he can't drive the boat. talk to the captain, and you will scrub his back. then he feels better. as a favour, he gives you the hm cut. remember you can't use cut until you have the cerulean gym badge.
To open the dotted hole you need to use the hm cut
You must ensure you taught a Pokemon the HM called Cut, then face towards a tree. Go into your Party and tap A on that Pokemon and you'll see it can use Cut. Select the move and it'll slice the tree in half, allowing you to access the path behind it.
you need to go into the Ilex Forest and chase the Farfetch'd around, trying to get it back to it's owner. NOTE: to use cut you need to have the badge from Azalea Town.
To use cut outside of battle in Pokemon gold version you need the second badge from Azalea Town from the gym leader Bugsy.
You do not need the move Cut to earn the Cascade badge. Gaining the Cascade badge allows the use of Cut outside of battle. The Thunder badge can only be earned after teaching a pokemon the move Cut.
You need the rainbow badge which you get a celadon city Hm cut is needed.
You need the second badge which is obtained by beating cerulean cities gym leader misty.
You have to get the HM01(cut) , teach it to a Pokemon and when you're facing the a tree to cut down open the Pokemon team menu and click on the Pokemon that knows cut and select the cut option. You also need the second gym badge
A tree will be blocking the way so you will need to use Cut on the tree to get past it. You can get Cut from the Captain of the SS Anne. You need the 2nd badge (Cascade Badge) in order to use Cut outside of battle.
first you need to get cut then go to cerulean cut the tree then pass rocktunnel go to lavender town, Then you go to the pokemon tower and fight your way to the top!
There is a huge building guarded by trees that you need to cut. You can get the HM for cut when you walk away from the Pokemon statue after your Rival shows it to you. You need the Forest Badge from Gardenia to use Cut outside of battle.
Silver cave in Pokemon Gold is located on route 28 on the way to Mt. Silver. The player will need Cut and Surf to navigate this passage.
If you don't want to use cut you can use surf instead but you need the 5th badge to do that.
If there is a pokemon in your party that can use Cut and you have the second badge then face a tree that can be Cut down press A on it then press A on YES to cut the tree alternatively you can open the pokemon screen and select your pokemon and press A on Cut.