At lily cove, surf east towards the little volcano looking thing on your pokenav.
Go directly below where that volcano looking thing is and then you'll see a large area where you can dive ( it's kinda long ) dive were the two of them meet and there's a little entrance. Go in that and then use dive again and your there
The first Gym is in Rustboro city. Which is by the tunnel to Verdanturf.
You Go left and use rock smash to open up the tunnel
a tunnel
He's the 8th gym leader. Go to stootipoolis city and go into he 8th gym.
You can get strength in Pokemon emerald by using rocksmash on the rocks in Verdanturf tunnel. a guy will give it to you
the underground tunnel in goldenrod
Maxie will be in the tunnel in Mt Chimney for Emerald.
Mirage tower and underground tunnel in the fossil maniacs house.
Which underground tunnel?? Tell us the game. If it is heartgold, soulsilver, firered, leafgreen, ruby, emerald, sapphire... Tell us!
There's no Ventredurf tunnel - Right name is Rusturf tunnel, which links Rustboro and Verdanturf.
At Pokemon emerald has a secret tunnel called tunnel of secreds you get one evolution stone
He isn't in the underground, you don't have to find him.