All you need is your passport! No vaccinations are required.
However, documentation of a round trip ticket or some other form of transportation out of the country to show Ecuador that you are planning to leave, that IS required. Make sure you book an exit ticket or you will be stopped at the airport and not allowed to board the plane. You MUST have a round trip ticket or at least a ticket that shows you have a departure date from Ecuador. Even if you plan to stay and apply for a visa, you must have this documentation to enter Ecuador.
If you are going to visit the coast or the jungle, we recommend getting the Dengue Fever vaccination and bring Malaria pills with you, but if you are only visiting Gaia Sagrada and then returning home, there are no diseases here, you are fine if you don’t get a vaccination.
If you have asthma, bring your inhaler.
If you have diabetes, bring your insulin.
If you have heart medicine or high blood pressure medicine, bring the medicine you need.