From Durban up the N2 take the Imfolozi game reserve turnoff (R618) 3km north of the Mtubatuba turnoff. From the north take Nongoma Mtubatuba turnoff (R619) follow the (R618) for about 25km this road has lots of speed humps and once you go over the cattle grid you are in the park and approximately 2km you will see the signpost to Nyalazi gate (turn left)
To Memorial gate it is a lot simpler, coming from the north or south along the N2 look out for the Hluhluwe turn off then follow the signposts to the gate it is about 5km to the gate from the N2
Estimated traveling times
Memorial gate
3hrs from Durban less half an hour from King Sharka airport
7 to 8hrs from Johannesburg via Pongola
8hrs from Mpumalanga or southern exits of Kruger travelling around Swaziland
6hrs from southern exits of Kruger if passing through Swaziland (this time depends on how busy the border posts in Swaziland are)
1hr 30min from St Lucia and Richards Bay
Nyalazi gate
If one is coming from Johannesburg or Swaziland it is better to enter through the Memorial gate.
3hrs from Durban and less 30 minutes from King Shaka airport.
45 minutes from St Lucia and Richards Bay.