https://www.answers.com/military-history/What_was_scapa_flow_used_for_World_War_2
What was scapa flow used for World War 2? - Answers
A British home base for their Atlantic fleet,I believe the ships used in the destruction of the Bismark came from here.
what wasscapa flowused forworld waranswers
https://www.scapaflowwrecks.com/
Scapa Flow : Historic Wreck Site
Explore the historic wrecks of Scapa Flow, with 3D 'virtual dives', interactive maps and definitive information on the amazing marine archaeology and wildlife
scapa flowhistoricwrecksite
https://news.st-andrews.ac.uk/archive/unlocking-the-history-of-scapa-flow/
Unlocking the history of Scapa flow | University of St Andrews news
the history ofscapa flowunlockinguniversityandrews