Mountain First From Saturday, 25 November, the Firstbahn in Grindelwald will be in continuous operation, bringing all adventure seekers and winter hikers to the Adventure Mountain First. Both the First Flyer [...] November 2017. The perfect winter weather attracted over 2,500 winter athletes to the area on the first day of the season. On the coming weekend of 25 and 26 November, additional facilities will be put [...] Flyer and the First Glider attractions will be open throughout the season and are included in the Winter Sportpass. For lovers of quiet and idyllic winter landscapes, the winter hiking trail to Bachalpsee