Embodiments described herein relate generally to a communication between in a neighbor awareness networking (NAN) cluster. A first communication device may be participating in a hidden NAN cluster and a second communication device may seek to join the hidden NAN cluster. The second communication device may broadcast a discovery beacon that includes an identifier of the hidden NAN cluster in a field of the discovery beacon that is associated with a transmitter address. If the first communication device detects such a discovery beacon, the first communication device may transmit a synchronization beacon having timing information associated with the hidden NAN cluster. If the second communication device detects the synchronization beacon, the second communication device may synchronize with the hidden NAN cluster. Other embodiments may be described and/or claimed.