Expeditions in the Ultimate Zone have the potential to be very challenging in remote, and hostile environments. You should ensure that you are fully prepared for the risks you could face and do everything you can to minimise these risks to help you stay fit and well.
Planning everything in as much detail as possible will help you to minimise risks by identifying possible dangers before you hit the trail! If you have gaps in your knowledge then seek advise or training from qualified professionals or experienced adventurers to ensure you have prepared for anything the wild may throw at you.
As with most activities outdoors it is important that people know where you are, where you are going and when you are due to return.
There are many ways to communicate these days including satellite telephones that operate everywhere on the planet. These can be particularly useful if you are a long way from civilisation and may need to get help fast. Whilst you hope you never have to use it in an emergency it is a useful tool just in case.
You should always know your limits and be honest with yourself about them. Do not push yourself too hard or place yourself in a position where you feel under-trained or unable to cope. You may be taking serious risks if you believe your limits are higher than they actually are.