Once you have the address book from Greg's house, you can chase Manny to the Leisure Towers building to the right of the school. Climb the outside to reach the top floor, where Grandpa has apartment 33-C.
If you don't have the address, or have not chased Manny, there is no way in even if you can climb the building.
The lockers are at the school, not Leisure Towers.
You do it at Leisure towers
In Poptropica, Leisure Towers is in Wimpy Wonderland. It is in the Right of the School Location.
It is short for the Leisure towers
Leisure Towers.
the card is in gramma house if not in leisure towers
yes
Her apartment is in Leisure Towers.
leisure towers
When I get up to the leisure towers it says "I don't know anyone up there" How can I fix that
you have to climb leisure towers and look for apartment 33c but you have to watch out for the elderly on your way up!
Leisure Towers is the elderly condos building to the right of the school on Wimpy Wonderland. (see related question)