MIlne Bay is the place of the first ever land defeat of the Japanese Imperial Forces during WW2. There are many WW2 memorials in the area. My favourite is Corporal John French's near the Goilani River. While the memorial itself is not spectacular, the story behind it is.
The Australian Forces came up against heavy machine-gun fire near from the Japanese Forces who were dug in near Goilani River. In an act of selfless bravery, ordering his section to take cover, Corporal French single handedly took out all three machine-gun nests using grenades, but was killed taking out the third. His actions won him the Victoria Cross and saved his unit. He is buried in Bomana War Memorial, Port Moresby.
This cache is located in Masurina Lodge at the Bren Gun Carrier that the owner rescued from the bush, and is available during day time only. My husband and I are the owners of this hotel, and therefore permission to enter the hotel grounds is given to anyone who would like to find the cache. While you are at Masurina Lodge, you might want to visit the small WW2 exhibit (though there is a fee for that), which contains artefacts from WW2 that have been purchased from local landers in an effort to preserve the history.
Hopefully while you are in Alotau, you will check out the other historical WW2 sites and learn some more of the history of the brave Australians who fought here in 1942.
Please place back where you found it.