The Hearthome gym leader Fantina lets you use surf in Pokemon Diamond, Pearl and Platinum.
The Thunder Badge
After you beat Sabrina, the 6th gym leader in Saffron City, you can use Rock Smash.
By defeating the the fourth gym leader
I believe that is after you've beaten the 4th Gym in Volcanoridge Town.
The Hearthome gym leader Fantina lets you use surf in Pokemon Diamond, Pearl and Platinum.
The Gym Leader that allows you to use the HM move Strength in Pokemon FireRed is Erika. Erika is the Gym Leader of Celadon City and is the 4th Gym Leader the player faces.
The Hearthome gym leader Fantina lets you use surf in Pokemon Diamond, Pearl and Platinum.
in pearl, diamond, and platinum the 6th gym
Beat the gym leader.
The Thunder Badge
the 5th gym leader. ground type master Clay (would have been useful against him!)
Which Gym Leader allows you to use strength? Using Strength Outside of Battle In the field, Strength is used to push heavy boulders out of the way. It requires the Mine Badge to use in this manner, so you will need to defeat Canalave City's Gym Leader first.
In Pokemon Red/Blue/Yellow and Pokemon FireRed/LeafGreen, the Celadon City Gym Badge is required to use Strength. Gym Leader Erika holds this badge.In Pokemon Gold/Silver/Crystal and Pokemon HeartGold/SoulSilver, the Goldenrod City Gym Badge is required to use Strength. Gym Leader Whitney holds this badge.In Pokemon Ruby/Sapphire/Emerald, the Lavaridge Town Gym Badge is required to use Strength. Gym Leader Flannery holds this badge.In Pokemon Diamond/Pearl/Platinum, the Canalave City Gym Badge is required to use Strength. Gym Leader Byron holds this badge.In Pokemon Black/White and Pokemon Black 2/White 2, Gym Badges are not required to use HMs.
After you beat Sabrina, the 6th gym leader in Saffron City, you can use Rock Smash.
It's the gym leader that allows you to use strength after you beat him.
By defeating the the fourth gym leader