disappear

When Sri Krsna had left for Dvaraka, both kundas disappeared. 

https://freeglobaluniversity.blogspot.com/search/label/VaticanKaabaStupaLingaTombGurudwara

While manifesting the pastime-places of Braja, Sri Krsna's great-grandson, Maharaja Vajranabha, again restored these two kundas under the guidance of Sandilya and other risis. 

https://harekrishnainfo.blogspot.com/search/label/Vajra

Five thousand years later, however, they had again disappeared. When Sri Caitanya Mahaprabhu came to this place, He inquired from the local people about Radha-kundaand Syama Kunda, but they could provide Him with no information. Instead, they told Him about the two fields named Kali Khet and Gauri Khet that lay before them, which contained a little water. Mahaprabhu respectfully addressed Kali Khet as Syama Kunda and Gauri Khet as Radha-kunda and offered them His pranama. Then, as He bathed in them, He became overwhelmed. Losing all patience, He cried out, "Ha Radhe! Ha Krsna!," and fainted. The place where He sat down is now called Tamala Tala. It is also called Mahaprabhu's baithaka (sitting-place).

https://8kund.blogspot.com/search/label/ShriChaitanyabaithakTamaalLataGaurKunda