The Last Continent, By Terry Pratchett.
Diary of Rincewind:
"Probably Tuesday: Hot, flies. Dinner: honey ants. Attacked by honey ants. fell into waterhole.
Wednesday, with any luck: hot, flies. Dinner: Either bush raisins or kangaroo droppings. Chased by hunters, don't know why. Fell into waterhole.
Thursday (could be): hot, flies. Dinner: Blue-tongued lizard. Savaged by blue-tongued lizard. Chased by different hunters. Fell off cliff, bounced into tree, pissed on by small gray incontinent teddy bear, landed in a waterhole.
Friday: hot, flies. Dinner: some kind of roots which tasted like sick. This saved time.
Saturday: hotter than yesterday, extra flies. V. thirsty
Sunday: hot. Delirious with thirst and flies. Nothing but nothing as far as the eye can see, with bushes in it. Decided to die, collapsed, fell down sand dune into waterhole."