Talk to baby Amelia Earthart, Dan Cooper and Charles Lindbergh. See surfboard machine - you can practice on it. Look at bar - there are three drinks available: Water, Paci-Fire and Diaper rash.
Take tiki glass and fill it with water. Use the glass on the kettle on the left. Do the same with Paci-fire and fire pit, but first talk to baby Glenn Miller.
Go back home through red triangle portal. Talk to COPS.
After conversation, minigame will start. The point of the game is to run over bagpipes lying on the street. Use keyboard arrows to control Desoto. Prize: car horn.
Give the car horn to baby Glenn Miller. He will give you conch - use it on Sam to hear the music. Take one drink (no matter which) from the bar and give it to baby Jimmy Hoffa.
Jimmy wants drink only from a member of the waitress union. Use drink on surfing machine. Try to keep bottle on your head. If another bottle will be throw, move to left or right. Otherwise stay at center.
Go back to Jimmy. This time he will drink, but still don't want let you in the cave.