After a quick trip though Petalburg Woods, they returned to Mr. Briney's shack. Inside he was playfully chasing his Wingull, Peeko. He saw Liam and his friends in the doorway. 
"Ah, welcome back." He replied. "Are you ready to go to Dewford Town?" he inquired. Liam confirmed that they were. Mr. Briny led the group onto his boat and set sail for Dewford. After five minutes, the boat arrived. Liam went and checked in at the Pokémon Center.