Thank you so much for this report! My family and I are doing a very similar trip (minus the trek) this summer, so I am really looking forward to your reports on Zanzibar & the Masai Mara. I too booked our flights based on award availability, so we are flying TK SFO/IST/NBO, then DAR/IST/SFO. I wish I had done a little more research before booking the flights, because flying to Kenya first and then Tanzania means we all have to get the Yellow Fever vaccine which is adding about $600 to our trip cost. Plus, the majority of our time will be in Kenya, but had we flown to Tanzania first, we would have qualified for a transit visa which is half the price. The good news is that I think ending the trip in Zanzibar will be a welcome relief. I'm curious if you took anti-malarial medication while there. Thanks again and congratulations on your successful summit!