$2 coral red stone cave entrance Low-poly 3D model by ultra3dmodels. Available on CGTrader. Check it out on CGHub.
STL (Stereolithography, filesize: 734 KB), OBJ (OBJ, filesize: 825 KB), C4D (Cinema 4D, filesize: 569 KB), FBX (Autodesk FBX, filesize: 1.99 MB), JPG (JPG, filesize: 54.2 MB), BLEND (Blender, filesize: 55.1 MB)