Insurance
Even if you are fit and healthy, don’t travel without health insurance – accidents happen.
Declare any existing medical conditions you have (the insurance company will check if your problem is pre-existing and will not cover you if it is undeclared).
You may require extra cover for adventure activities such as rock climbing or skiing.
If you’re uninsured, emergency evacuation is expensive; bills of more than US$100,000 are not uncommon.
Ensure you keep all documentation related to any medical expenses you incur.