I know it's a big question. Christine is not wearing anything white and pouffy, and Jaye is not wearing a suit or a tie. Think way less formal than what you would expect to wear for a summer wedding, but more formal than what you wear to go to the dentist. Suits and ties definitely too stuffy, shmancy dresses not required. Casual dresses, skirts, pants, shirts or nice shorts are cool with us. Be comfortable. It's in the bush, so spiky heels and easily torn fabrics are not reccomended. A skirt and hiking boots would be sensible. Dancing shoes are a definite.