Police continue to scour Sydney Harbour for a 51-year-old man missing after a deadly boating incident that claimed the life of renowned art dealer Tim Klingender.

Police recovered his corpse off Watson’s Bay on Thursday, after being alerted to what was initially reported as “floating debris”.

A second man, identified in media reports as tech entrepreneur Andrew Findlay, was believed to have been aboard the vessel as well.

Marine units resumed search efforts on Saturday morning, from South head to Cape Solander near Botany Bay, an area spanning more than 20km.

Mr Klingender’s death has shaken the art world, the 59-year-old having been a prominent Indigenous works dealer.

Sydney gallerist Michael Reid said the art community had received the news with “profound sadness”.

“The death of Tim Klingender was an unimaginable and devastating loss to his family and indeed the Australian art-world,” he said.

The Westpac Rescue Helicopter, NSW Surf Lifesaving and Marine Rescue NSW all joined the search for Mr Findlay on Saturday.

Methodical search pattern

Marine Rescue Inspector, John Murray described conditions as favourable.

“(Units) resumed the search at 7.30am in light winds and benign swell allowing for good visibility,” he said.

Marine rescue vessels are working their way west towards the Harbour Bridge, having conducted offshore parallel line searching from South Head to Coogee and patrolling shoreline in the Harbour.

“Both vessels are expected to conduct another offshore patrol at the request of the marine area command later this afternoon,” Mr Murray said.

-AAP