Is this the Resort or Villages?
At the Resort there are 7 pools, but not sure if any have slides - the one I hung out in didn't). Don't know about at the Villages.
There is a Publix on Central Florida Pkwy (closer to Villages than Resort, but not too far from Resort). You go down Int'l Drive then turn right onto Central Florida Pkwy (before you pass Sea World) and Publix is on the right (after Wendy's).
Very easy to get to all the parks
Sea World - from Villages - right onto I-Drive, then turn left onto Central Florida Pkwy-entrance is on the right. From Resort you can go down I4 to Central Florida Pkwy exit, or turn right onto US535 from entrance, then left onto US536, then left onto IDrive, then left onto Central Florida Pkwy.
MK - from Villages - left onto IDrive, left onto US536 and that takes you right into Disney territory - then follow the signs to MK
From Resort - right onto US535, then right onto US536, then again follow the signs.
Hope this helps!