I healed my Pokemon at the Goldenrod City Pokemon Center, then I wandered around town a bit. I picked up the Bike from the Goldenrod City Bike Shop, and I rode around town with it. I visited the Goldenrod Department Store, and I bought some items there. I also picked up some stuff from the basement. I then headed over to the Goldenrod Tunnel, and I battled some of the trainers there. I returned to the surface shortly after that, and I visited the Goldenrod City Radio Tower. I passed the test there, and my Pokegear was upgraded to play music. Whitney was there, and she returned to her Gym once I had the radio installed. I headed south to train my Pokemon for the Goldenrod City Gym battle, and then I returned to Goldenrod City 30 minutes later. I entered the Goldenrod City Gym, and I saved inside.