A Northland sailing ship is among the boats taking part in a flotilla protesting a Texan company's plans to drill for oil off the west coast.
Ratbag, a replica of an 1860s gaff-rigged fishing schooner, left Opua to join the seven-strong fleet heading to the Anadarko drill site 200km west of Raglan.
About 50 people gathered at Opua wharf on Tuesday to wave Ratbag and its crew off.
It was joined by three vessels which left Auckland on Monday and will rendezvous in the Tasman Sea around November 18 with three more boats departing from Wellington, Kaikoura and Bluff.
Ratbag is skippered by Chris, a resident of the Bay of Islands for the past 13 years, and his partner Ina.