Mahabharata 6.12.7
नैकधातुविचित्रैश्च पर्वतैरुपशोभितःसिद्धचारणसंकीर्णः सागरः परिमण्डलः
naikadhātuvicitraiśca parvatairupaśobhitaḥsiddhacāraṇasaṃkīrṇaḥ sāgaraḥ parimaṇḍalaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book