Repeat

Have you zoomed in and framed a scene? Cool. Play out the scene—establishing the situation, making soft GM moves, asking "what do you do?" and resolving their actions—until the scene is finished. Then move on to the next scene or situation, or zoom back out to loose play and resolve what's left of this leg of travel.

Is there still more to do in this leg of travel? Like, another challenge for you to present or another encounter to present? Make a soft GM move to introduce it, then resolve their actions, and see where that leaves you.

When there's nothing left of interest to say or do on this leg of travel, then briefly describe the rest of it—the weather, the terrain, how long it takes—and frame a scene at the next point of interest.