More than 20 people, boats, a fixed wing aircraft and a helicopter were involved in yesterday's search for Mr Reinke, police said.
The pair set off in an almost 5 metre boat about 7am yesterday to check crayfish pots.
About 8.15am another boat found their semi-submerged vessel in Whaler's Bay, near Kaikoura, police said.
Police and the Coastguard were alerted shortly after 9am and about 9.30am the body of Mr Monk was found on the shoreline, about 200 metres from the stricken vessel.
Yesterday the dive squad located a number of items from the boat and these have been taken for further examination.
The boat was towed to shore yesterday afternoon and would be examined by police investigators and Maritime New Zealand.