Hotel Längenfelder Hof In Grainau. The hotel längenfelder hof has spacious rooms with a balcony or terrace, cable tv, and a modern bathroom. During our stay in grainau, we noticed that the hotel längenfelder hof was fully booked for two of the three nights we've initially booked. "Ausblick" Hotel garni Längenfelder Hof (Grainau from www.holidaycheck.de