Mt. Bisoke, a dormant volcano, is located within Volcanoes National Park, and forms part of the Virunga mountain range bordering on DRC. It is approximately a 3 hr drive from Kigali.
You will need to meet your guide and group at the park reception. They will then guide you and your vehicle to the parking area to begin the hike. Note that the road from the reception to the parking area is very rocky and muddy. Depending on recent rains, you may require a 4x4 to access the starting point for the hike.
As I mentioned, the hike is guided. It is a strenous and challenging hike (set aside a full day to do this) that climbs to the top of Mt. Bisoke. I would not attempt this hike if you are unfit. There were actually a couple of people in our party that had to turn back. There are porters that are willing to take your pack up for you for a fee. Once at the top, you are rewarded with magnificent views of the forest and the crater lake.
Be sure to book the hike in the dry season, otherwise be prepared to contend with mud, mud and more volcanic mud that literally sucks you down. I recommend hiring gators from park reception (or bring your own) unless you like the idea of ruining your pants.
Top Tip: Keep your eyes and ears open on the hike, you may just come across a group of mountain gorillas like we did!