Been trying to think of ways to reconcile the scene/day structure with dungeons and hex crawling. I may have missed something in the book, but what I came up with:
(on page 5) "Change for dungeon and hex crawling. Each turn is a scene, and there is no limit of 6 as in normal play, nor day structure. However, still track time as system. If there is an encounter, this overrides any scene event."
However, thinking about it, you could also place any hex crawling turn/day encounter on any appropriate scene as an override, for sake of keeping more to little-gme mechanics. As well, you could treat the dungeon excursion as an extended scene or even as all 6 scenes, with each scene having multiple rooms handled as standard system crawling procedures. A lot of this has arisen from trying to reconcile this supplement with OD&D/0e specifically.