You could also look at our other packs:

Unity Tools:
River Auto Material 2019
River Auto Material
Lava & Volcano Environment 2019
Lava & Volcano Environment
World Streamer
Terrain Stitcher Tools
Multiple Terrain Brush
CTS terrain shader

Environment:
Forest Environment – Dynamic Nature
Meadow Environment – Dynamic Nature
Mountain Trees – Dynamic Nature
Dynamic Nature – Starter
Ice World
Advanced Rock Pack
Advanced Foliage Pack
PBR Graveyard Pack
Winter Mountains and Stamps
Photo Scanned Park Assets
Mountain Tree Pack
Realistic Tree Pack
Realistic Grass Pack

Ground Textures:
Winter Ground Pack
Landscape Ground Pack
Landscape Ground Pack 2

VR & FP Models:
VR Hands FP Arms

Check out the details and buy a license from the Unity Asset Store: https://assetstore.unity.com/packages/vfx/shaders/ice-world-83543

Now Download Ice World Free Unity