Hi Cherdave and welcome!
The document is about 4 years old but many things never change (like where the hikes are!)
Transport operating dates is of course out of date. 2019 updates:
Bernese Oberland Mountain Transport 2019 Operating Dates
Please note that all scheduled operating dates are weather-dependent. Following are the most popular transports in the region; for a more complete list see www.regionalpass-berneroberland.ch/en/p ass-and-infos/operating-times/
Wengernalpbahn (Lauterbrunnen to/from Kleine Scheidegg via Wengen) runs year round.
Jungfrau Railway (between Kleine Scheidegg and Jungfraujoch) operates year round.
SchynigePlatte Bahn (Wilderswil to Schynige Platte): operations resume 30 May 2019 and run until 28 October 2019 (note: the Schynige Platte to First hike is often closed until mid-June or early July due to snow)
Lauterbrunnen to Mürren via Grütschalp train: operates year round except 29 April to 3 May 2019 and 21 October to 8 November 2019. During these dates public transport to Mürren is available via the Schilthorn gondola only.
Schilthorn gondola (Stechelberg to Schilthorn via Gimmelwald and Mürren): operates year round except 23 April to 26 April 2019 and 11 November to 6 December 2019.
Männlichen gondola (from Wengen and from Grindelwald Grund)
Summer operations Wengen to/from Männlichen 11 May June to 27 October 2019. The lifts Grindelwald Grund to/from Männlichen will not resume operation until 20 December 2019 due to V-Bahn construction.. Bus service is available from Grund to Männlichen beginning 22 June to 13 October 2019. See www.maennlichen.ch/en/ summer-timetable.html for operating hours.
(Note: the Männlichen to Kleine Scheidegg walk is usually closed until mid-June due to snow)
Allmendhubel cog train (Mürren to/from Allmendhubel): operates year round except 8 April until 13 June 2019 and 14 October until 12 December 2019. See schilthorn.ch/en/Infos /Timetable__and__Tarif f for operating hours.
First gondola (Grindelwald to First via Bort): Gondola is in continuous operation from 24 November 2018 until 27 October 20-19. For more information see www.jungfrau.ch/en-gb/grindelwaldfirst/
(Note: the First to Bachalpsee walk, accessible during summer season, is typically closed until mid-June due to snow)
Harderkulm: operates 13 April 2019 until 1 December 2019
Trümmelbach Falls typically opens from early April until November.
Lake Thun and Brienz cruises operate from April through mid to late October. Lake Brienz cruises have a limited schedule in spring and fall. To check operating dates and times use the route planner at fahrplan.bls.ch/index. html?travelMode=ship. The site is in German only but easy enough to navigate. For point of departure enter either Interlaken Ost (Lake Brienz) or Interlaken West (Lake Thun). For destination enter Brienz or Thun, respectively. Enter your date and desired time then available cruises will be displayed. You will also see a graphic that indicates stops in between but no information about arrival time is available. The ships are in dock for 5 minutes at most before continuing on to the next port.