The pumpkin patch is both the first and last point on the island quest. You go there initially to see Linus, and return a pumpkin to Linus and Lucy's house. From there you swap Linus's bag for a lemon sucker, and swap that for an invitation to the party, before going left into Charlie Brown's backyard.
You go to the pumpkin patch and give it to Sally. She leaves and then Lucy will come get Linus and award you with the Island Medallion.
Go right to the pumpkin patch and weigh the pumpkins for Lucy. Roll one safely back to her house.
go to the pumpkin patch then go trick-or-treating
After Linus mails his letter, go left to where Lucy and Charlie Brown have the football.
You go around and talk to people on the island. Then you go to the pumpkin patch and pick the heaviest pumpkin and bring it back to Lucy's house.--You solve the quest on Great Pumpkin Island by interacting with the Peanuts characters. There are a few basic parts to the island :See Charlie Brown, Lucy, and PigpenPick up a pumpkin at the patch and roll it to Lucy at her houseGive Pigpen the bag and Linus the lemon suckerGather the leaves and return Linus's blanketGet the football and start Snoopy's adventureAvoid the Red Baron and the searchlights, get the mask for the partyPlay the four challenges at the Halloween PartyTrick or treat with the gangReturn to the pumpkin patch for Halloween night
After you complete all 4 games at the Halloween party, you go trick-or-treating with the gang. Bring a bag of candy to Sally in the pumpkin patch.
You have to go to the pumpkin patch and talk to the boy you have to help him pick the heavest pumpkin for his sister the you have to help him get it home without breaking it then you go in the house and talk to him again and he will give you the bag.
Talk to Charlie Brown and Pigpen, then go right to the Pumpkin Patch where Linius is planning to meet the Great Pumpkin. Lucy needs a pumpkin for a jack o'lantern so she wants the heaviest one there. Weigh the 7 against each other to find the heaviest.
After beating the four games at the party, you go directly to trick-or-treating. You do NOT have to catch anything. You will receive a bag of candy to take to Sally and Linus in the pumpkin patch.
At no time do you wait in the pumpkin patch. You go there at the start and end of the island quest. In between you have something to do on the rest of the island.The general process of the island is:See Charlie Brown, Lucy, and PigpenPick out a pumpkin at the patch and roll it to Lucy at her houseGive Pigpen the bag and Linus the lemon suckerGather the leaves and return Linus's blanketGet the football and start Snoopy's adventureAvoid the Red Baron and the searchlights, get the mask for the partyPlay the four challenges at the Halloween PartyTrick or treat with the gangReturn to the pumpkin patch for Halloween night(see the related question below)
Your first task is to go to the Pumpkin Patch, where you will help Linus select a pumpkin for Lucy, then roll it back to their house. Once you deliver it, Linus gives you the bag to give to Pigpen, and Pigpen gives you the lemon sucker to give to Linus. You will get the party invitation, then you can go left into Charlie brown's yard for the leaf game.
Charlie Brown is on the sidewalk when you enter Great Pumpkin Island, but he spends much of the game in his back yard left of Main Street. Snoopy is at his dog house at the far left of the island. Your first task is in the pumpkin patch to the far right. You have to weigh the pumpkins, roll one back to Lucy's house, give Pigpen the bag, and give Linus the lemon sucker. Then you can go left where Charlie Brown is collecting the leaves with Snoopy.