- The man starts by walking 5 km south.
- He then turns to the right, which means he is now walking west for 3 km.
- After that, he turns left, so he is now walking south for 5 km.
At this point, he is 5 km south and 3 km west of the starting point.
Thus, he is in the south-west direction from the starting point.
Thus, the correct answer is South-West.