Hello, as everyone above has mentioned there is only one route into N.Kenya from Sudan. The Road down the East Coast is rough to say the least.
The Turkana West coast road is considerably better from Furgesons Gulf south, however the Northern approach is pretty much only accessible from Uganda. otherwise you need to figure a way around lake Omo,
What not to miss out on: Loyengalani the Oasis lodge is amazing, or rather once you have arrived there, you will be amazed at how special a cold
can be, and the swimming pool is worth every penny you pay for the accommodation.
The Fishing is incredibly good, but really best done from the West Coast. with some world class Nile perch.
As for things to do: Youre in the middle of nowhere, in a lunar landscape, enjoy it.
If youve got nothing better to do and want to stretch your legs climb Mt Kulal, the views amazing, its just a tad warm, high and dry.
Try to remember that anywhere around here you are very seriously at the boundaries of civilization.
As for something very interesting, the fly's are tough, well theyre unbelievably tough I know its a weird thing to comment on, but you'll see when you get there, little swines are bulletproof.
Its also kind of hot here, by the time you get to Turkana its difficult to have the energy to see this as an adventure location, to have just arrived at and not the dangerously hot area that it is and just want to get away from as soon as possible.
South island is worth a visit, but security of your bikes is an issue and the crocodiles prohibit leisurely swimming!
There is a very difficult crossing from Loyengalani across the Chalbi to Marsabit and South East... eventually the police post at Mado Gashi, then onto Garissa. From there you can meander down the (mosquito ridden) Tana river eventually to Mombasa.
By the time you will have reached Turkana you will not want the challenge of riding this route (I promise you - its remote and, well not exactly safe) You will also need to arrange fuel and water drops to be made for you to collect in advance, as there is none.
When you pass South horr please think back to this statement, and try to imagine that this proposed route is much worse than the one that you are one and have just cursed.
If you are using this route keep the GPS track, and email it to me, my two attempts have failed miserably. Oh and take to sets of Michelin Deserts, just for this route, you will use them both.
Protect your Radiator from stones, (front and rear) its what ruined my second attempt. Use the heaviest oil that you can, and add an (extra) oil cooler double the amount of water you carry and be very cautious about the Lugga (dry river) crossings.
I am still trying to get my act together for this route again, but it may be a number of years.
Enjoy Samburu, and make sure you stop at the swimming pool in Buffalo springs.
Hope this helps.