The Kraken Cup is a dangerous adventure. You risk your health and your life by participating in it. The website is written in a light-hearted manner, but you must not underestimate the risks involved in undertaking this kind of adventure.
Your chance of dying is significantly increased for the duration of your time partaking in the adventure. This is not a glorified holiday. There are race boats that will respond if SOS signals are triggered but there is no guaranteed response time and it could be many hours before they reach you. In the first instance you will need to look after yourselves to ensure your safety.
You will be sailing through open water. You risk drowning and sunstroke. The environment can be aggressive and inhospitable. You may find yourself far from the nearest hospital when you need medical attention. Should specialist care be required in the event of an accident, the medical facilities in Tanzania may not be sufficient, and a medevac to a medical centre elsewhere may be required.
You will be sailing a traditional Ngalawa without any of the modern safety features you may be used to.
You will be sailing through open water - with extensive reefs and ocean swells.
Malaria is endemic to Tanzania so you will need to take precautions such as using mosquito nets and taking anti malarials, but even then there is no guarantee you won't catch malaria.
It's your responsibility to attain the correct level of death, accident and health insurance.
Do not underestimate the danger of this event.