- which lay behind the entrance island to the caldera with her masts dropped to not be in visibility, all guns laid. in hope of luring the Australians in. Her call there was both protective and for purposes of de-fouling of the hull, her max speed being just eleven knots with economical cruise of eight knots, clean. Peter Hanson pioneered Witu plantings his headquarters was at the Meto plantation not at Langu. Langu was planted in 1911. The Coote Family acquired Langu after 1946 when Dianna Martell (née Coote) inherited 50% when Mrs Baker died late 1946. Coote family bought out the other 50% from GB Sowerby. Dick Doyle acquired Langu 100% in 1993 his daughter Tania won Miss PNG a year later (1994). A tsunami passed through Witu in 1888 when the Ritter volcano near Gloucester collapsed into the sea. The wave was about immediately in the Ritter area, about at Witu and in Rabaul. In 1952 a Catholic mission was established on Witu inside the big caldera that forms Johanne Albrecht Harbour. Notes External links Islands of Papua New Guinea Volcanoes of Papua New Guinea Volcanic groups