The search for a tramper missing on the Milford Track is ramping up with people joining the effort this morning.
The man had been intending to climb Devils Armchair near the northern end of the track on Sunday, but was reported overdue shortly after midnight on Monday morning.
Police say additional search and rescue personnel and volunteers from Dunedin and the local region will be joining the search today.
Access to the search areas has been difficult and searchers have encountered challenging terrain.