There was 3.5 million particles rendered to get this water mesh. Here I used Cinema 4d r19 to displace a plane with topo map that I found online. I used photoshop to align topo map with satellite image then used image as texture in Octane. Added volume cloud and sunlight in Octane. I use Realflow 10 standalone software.
Workstation build:
Case: Thermal lake view 31
Motherboard: x399 Taichi
CPU: AMD Ryzen Threadripper 1950x 16 core processor
PSU: RM1000x
RAW: G.SkILL Ripjaws 64GB (4x16GB)DDR4
GPU 2x EVGA Geforce RTX 2080Ti
storage 1tb SSD, 4Tb sata
windows 10(x64)