Hey There!!
This is my new terrain inspired by navagio beach in greece. a demo in blender (version 4.0) is included which will guide you to how to set similar setup as mine. there are bunch of usefull mask and maps and two formats for the main height map which are .tof and .r32(raw) both in 32 bit 4k resolution. there's no mesh included in terrain but you can always export 3D mesh in any format using included .blend file. it also allows you to change the poly count of the terrain just put the subdivision count in modifiers panel and apply the modifier.
hope you like it.
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BLEND (Blender, filesize: 558 MB)