you have to have whailelord and reicanth in you party and also have dig and dive and this is to open the walls and this place is in the current past pacficlogthis may take sevral trys but is well worth it for more info go to an officl site
Chat with our AI personalities
The walk through walls Gameshark code for Pokemon Red is 010138CD
do what is the walkthrough walls action replay code for Pokemon heartgold.
Action Replay
Search for them in the walls underground.
you cant actually climb walls but if you mean the rocky walls that's rock climb which you get from professor oak once you get access to mount silver