I skated through Route 18 some more and I encountered a wild Heatmor as I passed by a rustling bush. I captured it in a Dusk Ball and then I used the Dowsing Machine, so that I could locate hidden items around Route 18. As I moved close to a bridge, I saw a skinny tree that could be cut and I picked up a Wacan Berry from the ground near a tree. I backtracked a bit since my Dowsing Machine had located an item nearby, but as I passed the tall grass, I encountered a Geodude horde which was unexpected. I caught the last remaining Geodude for my Dex after I beat the rest and I also encountered a wild Durant which I caught in an Ultra Ball. I found a hidden Poke Ball on a bush and I saved after that.