If you eat a lot of fruit , especially the melons, then your water intake will go way down.
When food is cooked, the water is removed from the food by heat, so basically cooked food is dehydrated, thus the reason why we need to drink so much liquid
But on a high fruit raw food diet, no extra liquid may be required. This depends on how warm it is where you live and how much you exercise , etc.
Also, if you eat dehydrated raw foods, then some extra water would be necessary.
As well as nuts and seeds that are low in water.