Georgi Tcvetkov:
Environmental Observatory "Musala" of the Bulgarian Academy of Sciences(2925m)
Georgi Tcvetkov:
Musala peak
Georgi Tcvetkov:
Musala Peak (2925 m)
Georgi Tcvetkov:
On the way down.
Georgi Tcvetkov:
Musala Peak (2925 m)
Georgi Tcvetkov:
Musala Peak