I need help to memorise while underwater, for up to 6 months.
I am a submariner and want to continue to develope my memory and mnemonic ability while deployed. (My memory palace is currently my submarine, which as an engineer I am continually conducting rounds of and checking all areas of, which helps in detail)
My issue is aquuiring enough offline resources to study when deployed later in the year so I do not stall or tire of persuing improvement.
All apps, programmes books, general tactics would be greatly appreciated.