Yes, there is ample parking available for guests for both the welcome party and the wedding day festivities.
The welcome party dress code is resort casual which is a step up from casual wear but not as formal as cocktail or business attire. Think polo shirts, dress shirts, linen pants, and skirts or sundresses. No tie or jacket is required! The dress code for the wedding is black tie invited which means that tuxedos aren't required, but men can still wear a tux if desirable. Otherwise, they can select a formal suit and tie. For women, floor-length gowns or dressy cocktail dresses are encouraged.
Yes, ladies should note that the wedding ceremony, cocktail hour and dinner will take place partially on grass. Wedge style or flat shoes will likely be more comfortable than sky high heels.