Swim wear x 7 (or x 5 if you will wash and rewear)
Shorts - 1 cotton and 1 denim
Beach/pool cover up
Throw on dresses
T-shirts to wear with shorts
Evening dresses
Flip flops
Sandals
Trainers
Undies
Travel outfit
Nightwear
Towels
Swim shorts
T-shirts
Underwear
Evening shorts (denim/chino style)
Evening T-shirts/shirts
Flip flops
Sliders
Trainers
Towel
If you are thinking of doing anything on the water then take rash vests/wet suits and remember hats/sunglasses/sun cream/basic medicine (paracetamol/ibuprofen/antihistamines/insect repellent/immodium etc)
I always pack a spare loo roll