You have to complete some gyms, then you will get Rock smash, and the ability to use it outside of battle. Then go in. Two people should be on opposite sides of the rocks. Rock smash through and you are in Vendaturf.
Rusturf Tunnel is located east from Rustboro City you can also enter the cave from Verandturf Town.
Go east of rustboro city.
Go to the right of rustboro city, or the the left of Verdanturf Town. That is the cave you see.
East from Rustboro city you can find Rusturf Tunnel.
the secret entrance to rusturf tunnel it is up on the mountain
Yes, you go into Rusturf tunnel, from the cave entrance in Vernturf town.
the hm move strength is found in the cave Rusturf tunnel
in rusturf city
in ruby:you catch it in the rusturf cave after beating steven in emerad:same cave but after you beat roxxane in sapphire:same as ruby in diamong:after you beat your mum in a contest in pearl: if you chose turtwig it is all wrong
East of rustboro city is a cave called rusturf tunnel if you have rock smash you can go to the other side and you will soon make it to verandturf town.
Go to the right of Azalea town past the cave with the slowpoke once you head down past that you should see a cave it will say route 33 this is union cave
Skitty does not appear in Rusturf Tunnel. Only Whismur are there.