Island asset credits

Sea Turtle by Eloi (Eloiart)
https://sketchfab.com/3d-models/sea-turtle-23dcb315dea44f5082b020b04710bd31
https://sketchfab.com/Eloiart
Licensed under Creative Commons Attribution 4.0:
https://creativecommons.org/licenses/by/4.0/
Adaptations: resized and compressed texture maps, normalized scale and orientation, removed global animation travel. Original mesh, skeleton, and local swimming animation retained. Olive tint and gentler normal intensity applied at runtime.

Environment scans from Poly Haven (CC0):
https://polyhaven.com/a/kloofendal_48d_partly_cloudy_puresky
https://polyhaven.com/a/sand_03
https://polyhaven.com/a/palm_tree_bark
https://polyhaven.com/a/coast_rocks_05
https://polyhaven.com/a/weed_plant_02
https://polyhaven.com/license

Water normal map: Three.js (MIT). Full notice: /textures/water/THREE-LICENSE.txt