Stalagmites and stalagtites in Perama cave
by Konstantinos Kourtidis, Demokritus University of Thrace, Xanthi, Greece
The Perama cave, near Ioannina, Greece. The cave is big, and about 1100 m of the cave are open for the public and can be visited. The cave was formed about 1.5 million years BP.
Konstantinos Kourtidis (distributed via imaggeo.egu.eu)