You may book babysitting services at the hotel or apartment where you are staying.
A professional NANNY will take care of your children during your absence, entertaining them with games and them reading books. You can tell the Nanny what you want your children to do during the time they spend looking after them.
In this case, it will NOT be possible to request for the children to leave the hotel/apartment.
The cost of the service varies depending on the hours booked.