This article is about the Class III road numbered C93 maintained by DfI Roads. For other roads numbered C93, see C93.
The C93 starts on the A29 and runs east along the southern edge of Portrush. After doing so the road meets a crossroads where it turns south. The road then TOTSOs off to the left (south) at its junction with the C535 and it eventually meets the B17 at a scattered crossroads at Cloyfin. Continuing south, the road passes by Ballyrashane Creamery near another scattered crossroads, this time with the B67. The road continues to meander its way south to a T junction with the C536 where TOTSOs south east. Oddly, this segment of the route as far as the Damhead crossroads seems to have been designated as both the C93 and the C536 with the C536 running out while in "multiplex" with the C93. Eventually the road leads to the A26 as the latter bypasses Ballymoney. The road continues for a short distance beyond the bypass heading into the town, ending on the C92 (former A26).