Gorilla Trekking? When and where?

[TravelNotes]

Sorry for replying so late.

I seem to remember answering a similar question.

Maybe, this can help you.

Gorilla Trekking Advice

I have clients in their late 70s and want to see the Gorillas. Has anyone been to see the Gorillas in Uganda and recommend this? Or would you advise Rwanda instead? They are active and have travelled a lot before, so I am not worried about their fitness level. I heard the permits need to be booked pretty far in advance, is 1 year enough pre-planning? Thank you for the advice!