The tallest antenna on Balding Avenue is the location of the greenhouse where the Third Spy is being held. To reach it, use the Grappling Bowtie to go up to the Rooftops above the Grease Monkey garage. From there, wear the Chameleon Suit and grapple left to the guarded building. Continue left to the red building, and climb to the top where you will meet a friendly spy. He suggests that you can now grapple right again to the tall antenna (aim high to avoid the lasers). At its base is the entrance to the greenhouse.
if you mean in spy island than you use ur bow tie to get to the antenna
He means to shoot the bowtie over to the antenna on top of the building to your right, where you will enter the greenhouse.
On the roof tops on the big radio tower
just use the spy grappeling bowtie to get up there
Use your grappling hook bowtie.
You have to grappel it with ur tie.
She is across the building with the antenna. Molly
Go farther left to the red building, climb the tower, then grapple back to the right to reach the antenna where the greenhouse is located.
he means to go to the building on the right, that's where the other spy is. (to be able to do that you have to get your bow tie tie and put it on the the building on the right side of you )
The path to reach the third spy on Spy Island goes left from the Rooftops above the Grease Monkey garage. There is a guard who will attack you on the middle building, and no way to go straight up. So you go left to the reddish building and climb up. At the top, a helpful spy will suggest using the Grapple Bowtie to reach the tall antenna back to the right (atop the target building).
The second antenna is across from the first where there is and agent. Shoot your bow tie across. It should hook on something. I am already done that island.
Spy Island is island #6. After Spy Island is Nabooti Island #7