Francis, a ranger with the ORTPN, gives us our pre-trek briefing.

Gorilla trekking tourists gathered at the ORTPN office near Ruhengeri, Rwanda.

Francis acquaints us with the nose prints of the specific gorillas in the Amahoro Group.

As our trek starts, we approach the lower slopes of Mt. Bisoke, where the Amahoro Group resides.

Ubumwe, the Amahoro Group's dominant silverback, welcomes us to the group.

A baby gorilla playfully climbs a tree while we look on.

One of the gorillas takes a short break from eating vegetation.

... and then it's back to eating.

One of the silverbacks relaxes in the vegetation.

I believe this is one of the female gorillas named "Karisimbi," the highest peak in the Virunga volcanoes range.

Two of the juvenile gorillas in the Amahoro Group tussle and play with each other.

One of the adolescents casts a glance our way during a brief pause in the wrestling match.

Another of the group females (I believe this one's name is "Rwanda") eyes us while chewing.