Spa visit etiquette

Hi all! In a couple days I will be using a day pass to The Dominick’s spa and was wondering if anyone knew what people typically do for footwear? I’ve only been to one spa in Jersey once before and everyone went around the whole facility barefoot, will this be the case here? I also assume I’ll be in my bathing suit the entire time there but if this is incorrect PLEASE let me know :) any other tips for general spa etiquette or The Dominick in particular would be greatly appreciated, TIA!