Papua New Guinea offers a wide choice of accommodation for tourists with very little of it budget.
Hotels are very expensive about $100/night. Guesthouses are the best budget option in the towns but even then still expensive about $40/night. The least expensive option is to stay in village guesthouses about $15/night, and that is where the fun is anyhow.
Port Moresby has international hotels including the Crown Plaza and Airways International, mid range hotels such as Lamana and guesthouses. The regional areas offer International and budget hotels depending on the size of the town and some provinces have guest houses. There is a new eco-tourist lodge in Alotau called Ulumani Treetops Lodge, the place is beautiful overlooking the Milne Bay and offers a new bungalow or backpacker options.
There is a very expensive lodge $200/night that sits on the edge of Tari basin, called Ambua Lodge that is run by Australians. This lodge is "an inspired mixture of local architecture, spectacular views and modest luxury off the beaten track." It is in the Tari Gap 2100 m in the Southern Highlands, which is the homeland of the Huli clan with their human hair wigs adorned with colourful flowers. It borders on the mid-montane rain forest and grasslands which gives a spring feeling all year round. This lodge won the 1991 Pacific Asia Travel Association's Pacific Heritage Award which cited it due to its "superb example of culturally sensitive and ecological responsible tourism."
A stone's throw down the road from Ambua Lodge is the more rustic Warili Lodge, which is run by locals, is only $20/night, and offers birdwatching as good as, or better, than that offered at Ambua Lodge.