https://mauikayakadventures.com/maui/legends-of-maui/

https://teara.govt.nz/en/artwork/27619/maui-and-his-grandfather

https://www.tourmaui.com/blog/maui-demigod/

https://sacred-texts.com/pac/maui/maui08.htm

https://forgottenrealms.fandom.com/wiki/Ettin

https://tolkiengateway.net/wiki/Ettenmoors

https://en.wikipedia.org/wiki/The_Red_Ettin

https://en.wikipedia.org/wiki/Thunderdell

https://library.princeton.edu/visual_materials/maps/websites/pacific/magellan-strait/patgonian-giants.html

https://www.wired.com/2014/09/fantastically-wrong-giants-of-patagonia/

https://www.historicmysteries.com/kap-dwa/

And of course, the 5th ed Monster Manual