Pemaling Ney: 
Bumdeling.
Alt. 4500m.

A cave in an alpine area surrounded by pristine lakes, where Guru Rimpoche meditated. Many of the lakes, located at around 4500m elevation, are considered sacred (latshos). Monks from Singye Dzong undertake a pilgrimage to Pemaling around August/September to meditate there for 1-2 months. It is a 3 day trek from the end of the road near Tobrang.