The busiest times for the canoe journey are long weekends, and John Coull Hut and Tieke Kainga are booked out on some nights in January for the annual Whanganui Iwi canoe journey Tira Hoe Waka.
The hut/kainga and campsites on the river are booked online, and are rarely overcrowded. People arriving without booking are accommodated if there is space, but they must pay double.
A pinch point has developed at the Mangapurua Landing, where cyclists, walkers and canoeists intersect to get to the popular Bridge to Nowhere.
"We are working through possible solutions to that congestion, because we see it as only getting more congested."
The department has no trouble getting volunteer hut rangers. They are taken in to the hut/kainga by jetboat, usually for a week at a time, and given an allowance to pay for food.
"We've got a good, solid pool of people, generally from the Wanganui community, mainly people who've had a long association with the awa," Mr Taylor said.
Rangers for the Tieke Kainga were usually tangata whenua, from Te Whanau o Tieke, and there was a solid roster there, too.
John Coull Hut got a new deck for the summer season this year, and the bunkroom at the Whakahoro campsite was moved to orient it to the sun. It was also voluntarily painted by the Taumarunui contractor known as Sideshow Bob, Bob Anderson.
During this summer the department plans to put "watercatchers", small shelters with water tanks, at a campsite in the Mangapurua Valley and another in the Kaiwhakauka Valley.