If you plan on travelling in the wilderness of Iceland you should always prepare your journey well and make sure someone knows about your travels. Learn more about what measures you can take at this website.
Please visit www.safetravel.is to check the weather and road conditions before you start your adventure for the day.
You can also download the 112 Iceland app. It is an app that sends an SMS to the Icelandic emergency service 112, with the phones GPS location, before calling 112. (Get the 112 Iceland app for Android and for iPhone.) Simply download the app, fill in your name and an emergency contact, and save. You can even periodically check in through the app to create a trail of breadcrumbs just in case something does go wrong.