If the resort has a Web site, check it out to find more information about prices, schedules, and seasonal programs and activities. Ask what age divisions they use to group the children and how many participants they expect when you'll be visiting. For babies, the ratio is one caregiver for every three children if a group has six infants, one for every four if a group has eight babies. You also should ask what medical and safety precautions the caregivers take.
Some hotels use employees such as housekeepers and recreation staff members as on-site caregivers.
Occasionally, the staff has had CPR training provided by the hotel. If they haven't, you can ask for the phone number of a local, bonded babysitting service instead. Feel free to ask for references. I know someone who once called the concierge at the hotel where she would be staying and asked whether the concierge was a parent. It was a roaring success.