The Department of Conservation is asking the market what automated system could replace its ageing Activity Counter System, the network of underground sensors it uses to track visitor numbers at nearly 700 sites on public conservation land across Aotearoa. RNZ

The current system, according to a DOC tender document that closed on Friday, "faces end-to-end challenges across hardware, firmware, data flow, and verification, resulting in inconsistent data and operational inefficiencies." The same document said "manual processes dominate downloading and validation of counter data, causing delays, data loss, and backlog." A lack of telemetry in the counter network prevents real-time monitoring.

Most of DOC's visitor counters are installed underground and must be checked manually by staff to download the data they hold. The department's website describes the devices as electronic sensing units installed on tracks and roads to record activity by pedestrians, bicycles, and motor vehicles. DOC

Officials are particularly interested in artificial intelligence and cameras among the replacement options, the tender document showed. DOC expects that some high-value sites will end up with multiple monitoring technologies in place, with visitor counting as the basic use case. The procurement is being funded from the international visitor levy, the $100-per-person charge collected through the border control system.

Conservation Minister Tama Potaka said better information on visitor numbers and patterns would help with deciding where facilities, funding, and staff were most needed. The counter network feeds decisions about how DOC allocates its operational budget across a far-flung estate, and the data quality problems come as the department prepares to introduce new charges at some of its most visited sites.

DOC papers show that charges of $20 to $40 for international visitors at Milford Sound, Aoraki Mount Cook, Mautohe Cathedral Cove, and the Tongariro Alpine Crossing could raise over $60 million a year. DOC said no decisions have been made on the final amounts; those will be set via regulations. The earliest a new charge could come into effect is summer 2027–28, and the timing depends on the progress of the Conservation Amendment Bill, which has passed its first reading.

In developing the charging framework, DOC looked at three possible approaches: charging all visitors the same regardless of nationality, charging everyone but charging locals less, and charging only international visitors.

The department has a long institutional history of grappling with visitor monitoring. A 1999 report by G. Cessford on the social impacts of visitors to conservation lands proposed developing models for strategic deployment of counters to allow extrapolation of counts across wider visitor systems. DOC A 2005 report by J. Ross described management practice for the use of automatic counting instruments in countryside recreation areas. DOC A 2006 review by K. Booth referenced a visitor monitoring manual covering methods to count, record, and analyse information about visitor numbers. DOC A further DOC report (DRDS293) outlined the main difficulties encountered when monitoring visitors in national parks and canvassed the range of monitoring options available to park managers. DOC

What that body of work indicates is that the problems RNZ reported on 7 August are not new. DOC has been documenting the difficulties of reliable visitor counting on conservation land for well over two decades. What has shifted is the convergence of two pressures: the operational case for replacing a failing hardware and data pipeline, and the policy case for getting visitor numbers right as a charging regime looms.

The linkages are straightforward. If DOC is to charge international visitors at iconic sites, it needs defensible data on who is using those sites, how often, and when. A counter system that loses data and produces inconsistent figures is a weak foundation for a pricing structure that may generate tens of millions of dollars annually and will inevitably face scrutiny from tourism operators, iwi with interests in the relevant whenua, and international visitors themselves.

The interest in AI and cameras signals that DOC is looking beyond like-for-like sensor replacement toward systems that could potentially distinguish visitor types, capture more granular temporal patterns, and transmit data without manual collection. Whether the market can deliver that at the scale of 700 sites, across the range of environments DOC operates in from alpine tracks to coastal reserves, is the practical question the tender process will test.

The funding mechanism is worth noting. Using the international visitor levy for the procurement means the cost falls on international tourists rather than on the Crown's baselines or on domestic users. That is politically clean but ties the pace and scope of any rollout to levy revenue, which itself is sensitive to international arrivals.

For the political and policy audience, the two threads to watch are the procurement outcome and the legislative pathway for the Conservation Amendment Bill. The counter replacement and the charging regime are on separate timelines, but they are heading toward the same destination: a conservation estate where access to the most popular sites costs international visitors more, and where the department knows with greater precision who is turning up.