In the end, I decided to copy selected translations from the Portugese language video about the Portuguese Navy's "NRP Arpão (TKMS Type-214 variant AIP-lead-acid battery) submarine under ice journey. I note from what I read, also onboard was:
- Danish naval officer
- Canadian naval officer (submariner) who is now CO of a Canadian Victoria class submarine
- US Navy civilian scientists, who have experiece in under ice travel on SSNs and in part acted as under-ice pilots.
Here are selected Google translations from the video