from c2004 passenger and cargo, YWAM Koha is a New Zealand-registered Medical Aid Ship, built in 1968 as the buoy tender Konrad Meisel for the German Government and later owned in South Africa as Isibane.

As the Claymore II she provided the essential transport links to the remote Pacific territory of Pitcairn Island from New Zealand and French Polynesia, part-funded by the British Government until 2018 when she was replaced by the Silver Supporter.

[1] During Konrad Meisel's 30-year service with WSA Cuxhaven, she was responsible for the maintenance of marine navigation buoys in the lower River Elbe and the adjacent sea areas.

[5] In August 2009 Isibane was purchased by Nigel Jolly, of Stoney Creek Shipping Co Ltd, Palmerston North, New Zealand, modified to carry cargo and 12 passengers, and renamed Claymore II.

[3][11][12][13] She also made eight subsidised round trips each year, from Pitcairn to Mangareva, French Polynesia, the nearest airport, for passengers to connect to the air service to Tahiti.