We are planning a 3 week trip to Tanzania in Feb. 2015. We are looking at 4 nights in Selous, 4 nights in Ruaha and then the northern circuit. We have been in the north before but not the south. If we arrive in Arusha at 1 PM, can we get to the Sopa hotel at the Crater before dark? Does anyone know how long it would take to drive from the Crater to the Ubuntu Camp in the southern Ndutu area? Thanks!