Sydney's heritage tugboat Argos hits final snag on the NSW Central Coast

The Argos will eventually be destroyed after being removed from Brisbane Water. (Supplied: Peter Duffy)

A piece of maritime history, one of Sydney's first steam tugboats, has come to a watery end on the New South Wales Central Coast, just months before it was due to undergo extensive restoration.

Volunteers from Transport Heritage Australia (THA) have spent years working on the Argos, which was built at Berry's Bay in 1903.