I am posting this under General for Aruba because I am posting it because of two recent stories I heard of emergency medical situations that did not occur in Aruba. I can't imagine what would happen if these people did not have insurance. Anything can happen at any time anywhere.
1) A person on one of sister ships of the one I was recently on had an appendicitis on the ship 100 km off the coast of Antarctica. They turned the ship around and went back to Ushuaia, Argentina-the weather conditions(15-18 foot swells) would not allow a transfer to a different ship or to a helicopter. I don't know the details, put we do know the person is okay. Imagine the cost of having emergency surgery in a remote area of the world and the cost of a helicopter to do a sea rescue if needed. AND, everyone on the ship who did not get to complete their trip to Antarctica. (yes, the cruise line is taking care of them, but not everyone will be able to take advantage of their offer and will need to use trip interruption insurance).
2) A friend of a relative of ours was on a cruise ship in France in port and had a heart attack on the ship. They saved her life there and transferred her to a hospital. She had two surgeries and her husband was in a hotel for a good week. Then they had to find their own way home after she was released.
So, the moral of the stories-make sure you have health coverage and trip interruption coverage when traveling. I know Aruba does not accept outside health insurance and you have to pay before you leave the hospital and get reimbursed, which can be difficult, but imagine not getting any of that covered.