There is only one restaurant which requires you to "dress" for dinner. That is Eight Rivers. I usually wear a sundress. Men need to wear long pants and a shirt with a collar. Closed shoes are required. All of the other restaurants are casual- a nice top and shorts.
During the day normal summer and swimwear attire is appropriate.
Swimwear is permitted.
Breakfast and Lunch:
Swimwear must be dry and covered. No bare feet. Shorts / t-shirts / flip-flops are most common.
Gourmet restaurants and repeat guest dinners: Semi-Formal – summer or cocktail dress and sandals, or skirt and nice top for women. Dress pants, khakis, shirts with sleeves and collar and dress shoes for men. Jacket not required. (Elegant dress sandals are allowed). Jeans, shorts, sneakers, flip flops are not permitted.
Resort Casual - shorts with a nice shirt/blouse and sandals are allowed.
I know everything, and I'm always right (just ask my husband).