Recommendations for a (preferably free) topographic and bathymetric map source? – March 5, 2023 at 02:21AM

I wanted to create a map of Tokoriki, Fiji. We went on a trip there because I lost both my dad and step dad within 6 months, so I needed to get away. While I was there, I released a very small amount of their ashes, so Tokoriki is a special place to me. I saw one of those expensive topographic and bathymetric 3D printed maps recently, and thought it would be cool to make some sort of artistic project similar to that, but I’m not sure what resources are out there to reference/create a map.

Thank you for any help!