We are planning to take the Bus 840 in the morning from Salzburg to Berchtesgaden - & then join the Eagle's Nest guided tour that starts 1.15pm & is slated to last 4 hours , before taking the same 840 bus back to Salzburg (last bus approx 6 pm ?).
1) Any advice on whether we have sufficient time to squeeze in a Kongisee boat trip before joining the ENT - say like 10-12 am?
2) Also , the Dokumentation Museum/underground bunker portion of the ENT looks really interesting to me & ideally i would have wanted to spend more time/detail there than the guided tour may possibly allocate. Is it worthwhile trying to do the Dok+bunkers+Eagles Nest visit on my own instead of guided tour, so I can do the individual sections at my own pace/ time allocated ? I am told there are English audio guides at the Dok , anything similar for the Eagles Nest also ?