Well, everyone's encouraged to dress "like adults" who are attending a solemn ceremony of love and commitment. There will be plenty of picture taking and no doubt, you'll want to look your best.
Upon arrival at the venue, there will be a signage at the entrance indicating your name and the table at which you'll be seated.
Guests will have to arrange for their transportation between their hotel and the wedding venue. Some area hotels offer local shuttle services. Check with the hotel directly about this service. Ridesharing companies are also an option and should be fairly inexpensive, as there are many hotels within 5 miles of the venue.