The attire is Formal Garden Party. Think fancy / cocktail style and don't be afraid to wear colors and prints. Guys don't be afraid to wear white pants; ladies don't be afraid to wear white. But, don't stress about the theme, it's just a suggestion!
Shoes you can walk on concrete, grass, mulch and DG with, and shoes you can dance in. This is a moving style reception so there will be more standing and mingling so wear comfortable, walkable shoes.
Yes, 100% outside so be prepared for when the sun goes down.
What parking? Really, try to use a rideshare or carpool if driving. Parking is truly very limited so if you are driving, you may have to walk a block ( or 3).
Babies allowed. No toddling allowed.