There's a few bits of thoughts about travelogues that I wanted to get down, but don't really fit in. These just relate to the kinds of things that characters might contend with when travelling, which don't necessarily get much attention in mechanics designed for a more adventuring style of play, but which might offer some opportunities for interest.
This depends to some extent on the nature of the journey. Is the travelogue genuinely through actual wilderness, with never another human in sight bar perhaps a hunter or hermit? Or is it, more plausibly, through a succession of towns, villages and farming communities, with breaks of perhaps a few weeks across entirely unsettled regions? If the latter, are they unsettled because they're utterly inimical to life (in which case, a bad choice for travel), because they're full of monsters (a different kind of challenge), because they're actually occupied by wandering communities like hunter-gatherers or roving herdspeople, or because they're reserved for use by powerful nobles (in which case gamekeepers and soldiers are to be expected)?
All the following is just bits of ideas I've had.