A part of Ardhatṛtīya Dvīpa;
the half portion of the Puṣkara Dvīpa which is in the form of a continent (island) encircling the Kālodasamudra (ocean), and itself surrounded by Mānuṣottara Mountain (it is ring-shaped with the width of 16 lakh Yojanas (1 Yojana=7.88 kilometers)).
puṣkaravaradvīpārdhaṃ mānuṣottareṇa parvatena parikṣiptam.(TaBhā 3.8)
See - Ardhatṛtīya Dvīpa, Samayakṣetra.