It's on a water tower you need to get a jet pack to go get that flag you must find a golden egg to get the jet pack
You find it on the water tower. To get it, find the golden egg and see the giant. Then, you can get the jet pack or go down the whole.(you gotta get the jet pack to get to the hole.) Grab the water bucket. Go down the hole.
Go to the place where the pumpkin is and go over the shovel on the Poptropica water tower. :-)
go in lighthouse to get it then give it to jet pack guy then do the equal
If you are a member, go to the forest and you can go to a hot air balloon ride.(only in festival of flight.) At the end of the ride you can get a free jet pack.
after you power Jet pack guys jet pack go to the docks you will find a penguin with some he will give it to you if you ask
Go to the beacon and waddle over to a metal launch pad with a jet pack next to it. Then it will ask you if you want to play. Click yes and you will start to play Jet Pack Adventure.
You go to the beacon (top of the lighthouse) and go towards the jet pack landing pad (where you start the jet pack adventure game). You will see a green balloon with jet pack fuel tied to it on a string. Use the fan from G's lab to blow it closer. Get out the scissors from your spy phone and cut the string. You should then be able to get the fuel.
the hot sauce in the pizza place the hot chocolate you have to get the chocolate in the pizza place and go to the coffee shop and fix the coffee machine and make the hot chocolate the jet pack fuel you have to go to the lighthouse and get the cream barrel and bring it to jet pack guy to make it jet pack fuel
you ride a jet pack by going to the lighthouse go inside click on the sign that says "to the top" and then click on the medal thing all the way to the right and your riding a jet pack .(you are also playing a jet pack game)
go to the beacon at the top and you will see it
You go to the gadget room and get the fan from the shelf of prototypes then go to the balcony and get the fan out and click on the jet pack fuel and then when it is closer cut it down with yoursiccors from your tools on your spy phone