Pick your date. See what is open, when it gets dark, and which train gets you there.
The treetop walk over the old sanatorium changes its hours almost every week this winter, shuts for whole stretches in November and January, and turns into an evening light trail from 27 November. Pick your day on the strip or in the date field.
The season, day by day bar height = hours open, 9:00 at the top
Day openingEvening light trailClosedNot yet confirmedAfter dark