You guys are all at the beach, Soos is collecting sea shells and making sand castles with Mabel, Wendy is going surfing and skiing, Stan sits in a beach chair and falls asleep, Dipper gets sand and salt water in his eyes, again. Mabel tries to pet every sea animal she sees, Ford is sitting by the water and making sure everyone is ok and looking out for Bill, and Bill tampers with everyone's stuff in the most inconvenient way