Angry Doctor

Hi Guys,

excuse my ignorance, but a question for those of you doing the angry doctor this weekend. I was curious with regards to the water situation during the race. I understand everyone carries their own supplies (water , food etc) but is there a refill station anywhere along the way. I doubt 3 litres will get me 100kms.
Do we end up near the start after 50km, ie near our cars, so we can grab stuff before the next 50?

Thanks in advance.