I headed out to Four Island after I got some stuff taken care of on Three Island. I sailed for the next island and once I arrived, I healed my Pokemon at the local Pokemon Center and I wandered around. I visited the Day Care Center and then I visited some houses around town. I bought some items at the Poke Mart and then I headed over to Icefall Cave since that was practically the last place of interest around town. I arrived inside the icy cave and I encountered some Pokemon including a Swinub, which I captured. I wandered around the cave while sliding on ice and I eventually found the Waterfall HM, which I taught to my Golduck. I headed deeper into the cave until I found Team Rocket grunts and Lorelei fighting against them. I decided to help her and I defeated a Team Rocket grunt. They all eventually left the cave and I headed back to Four Island. After visiting Lorelei's house, I saved the game.