Dendarii Gorge is a deep, winding ravine whose powerful drafts and waterfall make it a demanding lightflyer route. For Miles Vorkosigan, it is both a place of remembered competition with Ivan Vorpatril and a setting where he now teaches Martin Kosti to fly more cautiously than he once did himself. The contrast turns the gorge into a measure of Miles’s changed capacities and judgment: the old appetite for danger remains imaginable, but no longer governs his choices.

Setting and Flight Conditions

The gorge’s steep terrain creates wild up-and-down air currents beside and beneath its main waterfall. A particularly demanding route dipped through these drafts three times, enough to make a passenger lose their nerve or their breakfast. The terrain offered grandeur as well as danger: during a later hour of flying around the gorge, even Martin, a city-dweller, was impressed by the scale of the place.

Miles and Ivan’s Contest

When they were slightly younger than Martin, Miles and Ivan made the gorge the course for a contest in lightflyer nerve and endurance. They took turns at the controls; the passenger could concede by banging on the dashboard, or be forced out of the contest by losing a meal. To make a proper run, they disabled several of the flyer’s fail-safe circuits, a trick Miles would rather Martin did not learn.

Miles initially gained an advantage by avoiding breakfast before a run, until Ivan noticed and insisted they eat together to make the contest fair. Miles won the final round by proposing a night flight. Ivan went first and brought them through alive, emerging over the last rim pale and sweating. On Miles’s turn, he switched off the flyer’s lights and flew the speed-pattern with his eyes closed. Ivan held on until he realized what Miles was doing; Miles did not mention that he had practised the identical pattern more than sixty times in daylight over the preceding three days, gradually darkening the canopy until it was fully opaque.

A More Cautious Return

On a later flight with Martin, Miles initially resists the prospect of powering up the lightflyer for excitement. He knows what the machine can do, but sees no reason to hurry. He still itches to take the controls and give Martin the kind of white-knuckle ride he once shared with Ivan, yet recognizes that he is no longer physically, mentally, or morally up to flying that way—not even setting aside his seizures. In retrospect, the cousins’ survival seems less like proof of superior Vor skill than a matter of extraordinary luck.

Instead, Miles steers the outing toward instruction. As he heads south and west toward the peaks, he prepares to show Martin how mountain downdrafts and lightflyers behave. They spend an hour in and around the gorge, taking the route much more slowly than Miles and Ivan used to. The lessons make breakfast only a mild regret rather than an immediate emergency, and the flight eventually turns east again.

Narrative Significance

The gorge holds two versions of Miles’s flying skill in tension. The night contest depends on preparation, nerve, and a concealed advantage; the later outing shows him refusing to turn remembered prowess into an unnecessary risk. His reluctance is not simple loss of interest: he can still imagine the thrill, but understands that his condition and responsibilities have changed what he should do. The same dangerous landscape therefore serves first as an arena for youthful bravado and later as a place where experience includes knowing when not to repeat it.