Mahale Mountains National Park

The Park is excellent as is its wildlife and nature. The standard accommodation there is not overwhelming but all in all I rate the price-quality-relation as satisfying.

Lovely camp setting on Lake Tanganyika. I did NOT so much enjoy vicious Chimpanzees.
Trekking terrain can be very difficult for a senior :)

Mahale is a very good park to see the chimpanzee. Lake Tanganyika is very good for fishing and sunsets. In the lake live a lot of endemic cichlids.

Mahale is a unique safari destination

There are no driving safaris in Mahale. You are on lake Tanganyika on one end and a very dense forest on the other. Viewing the chimps requires hiking to find them. Some of the hikes can be difficult, so you should be in good enough physical condition for the hiking. You cannot hike deeply within the park without a park ranger and guide. When not hiking, you can sit on the beach, kayak, snorkel, bird, and or relax.
Tanganyika is famous for its chiclids, so grab mask and snorkel and see them! The water is nice and calm.
Other than the Chimps, there are not a lot of large mammals to be seen. There are other monkeys in the forest and you may see an occasional hippo in the water, but that's about it. If you want to see the big 5, this is not the place. You can combine Mahale with another park to see the big 5 and to make a more complete Safari experience. For chimps in the wild, Mahale is amazing.

Nice if you love Chimps and Jane Goodall and I do!Greystoke Mahale look for them they also do KataviFly but it will coast you like a charter!