If you're traveling from out of town, yes. If you're local please arrange for a sitter.
If your invitation says “and Guest,” then yes, if not, then no.
Cocktail, please. The reception will be outdoors, please wear comfortable shoes.
Based on current trends, we think most people will be fully vaccinated. The ceremony and reception will both be held outside. Mask are not being required, but you're more than welcome to wear one. Safety is the #1 priority, if conditions change we will adjust protocols accordingly.
Check the Travel page for some suggestions! Book soon because this is the weekend of Jazz Fest.