You finally have a vacation planned, and your parents will be watching the kids. Everything on your To Do list is done, but I bet there is one thing that you did not have on your list–have a medical power of attorney prepared. (If you have had one prepared, then my apologies for doubting you.)
What happens when your child is injured or sick and requires medical attention when you are not there? If you are in Hawaii, and your parents are watching your children in Ohio, and consent is required to treat your sick or injured child, what is the fastest route for obtaining that consent? It might not be calling you, or otherwise tracking you down, especially if you are snorkeling or on a helicopter getting a tour of the islands from the air. The fastest route to getting your child treated at the hospital is for Grandma or Grandpa to pull out the medical power of attorney that you had prepared and gave to them, naming them as agents to make medical decisions for your child.
Things to consider include any treatment you object to, how long the document should be in effect, and perhaps successor agents just in case your primary agents (here, Grandpa and Grandma) could not serve.
Have your attorney prepare a medical power of attorney for you so that it complies with your state’s laws. Having one prepared provides true peace of mind.