They are usually climbed together by heading up the Kilbo path that runs between the two then heading off to either side to take in the two hills. On our day out yesterday, we approached from a different angle by heading up the very steep Corrie Fee (a much harder but more interesting approach) then returning by the Kilbo path.
Heading towards Corrie Fee
Looking back towards Mayar from the summit of Dreish,
Lochnagar from Dreish
Looking towards Dreish from the head of the Kilbo path on our way back down.