Adult day care is just what you think it is, elderly care for adults
just like day care for kids. Adult day care is a wonderful solution for people who have their parents or elder living with you, but can't leave them at home alone for 8 hours while you go to work. At adult day care centers the elder is in an environment where there are activities (if they are able to participate), meals, recreation and some hands on care (i.e. medication administration). Other adult day care centers have a more health related program where physical therapy is conducted, for example, and more severe health related issues are addressed.
Again, as with any program, you need to do your homework before you send your parent to an adult day care center. They may or may not have a license; they may offer services that are totally different from other centers. You need to find one that fits the need of your parent. The price ranges varies greatly for these types of centers. They can be as low as $25 a day to $100+ a day. This variation depends on the type of services your elderly parent needs and your physical location in the city or state. Adult day care centers are generally paid for by you or your elder, but you may be able to find some assistance from Medicaid or Veteran's Administration etc.