Leave that massive suitcase for another trip because you won't need to take much with you to the hotel. You'll likely spend a fair amount of time in a fluffy bathrobe and slippers, but usually these are supplied by the resort. If you want to go for a splash in the pool or enjoy some water-based activities, pack your swimming suit and a spare set of clothes. Casual, non-restrictive garments are encouraged. Contemplating taking a yoga class? Bring workout gear and a pair of comfy trainers. Oh, and don't forget to take your toiletries!