I began surfing south of Pallet towards Cinnabar Island and I found a bunch of swimmers and fishermen (and even a cue ball!) along the way. I arrived on Cinnabar Island shortly and explored the small island before heading to the Pokemon Mansion. I always get confused in here so it took me some time to figure out where I needed to go to reach the end. I eventually found my way though and after grabbing the Secret Key I entered the Cinnabar Gym and took a break.