Dismal Swamp is a deep natural depression and forest site south-west of Smithton. It formerly operated as Tarkine Forest Adventures, with a visitor centre and slide into the sinkhole forest, but that attraction closed and the site is now being prepared for a new use.
Do not assume the former attraction is open
In June 2026 the Tasmanian Government reported that remediation and access works were under way, with a new tourism and hospitality concept still being refined and an operator yet to be selected. That announcement did not reopen the former slide or establish normal public visiting hours.
Treat construction fencing, gates and closure signs as current authority. Do not enter to inspect abandoned infrastructure, and do not rely on old reviews, maps or photographs that describe a functioning visitor attraction.
The forest remains significant
The site sits within the far north-west’s wet forest and karst landscape. Large trees, sinkholes and waterlogged ground explain the former attraction’s appeal, but they also create hazards when paths, drainage and structures are not maintained for public access.
The redevelopment is intended to secure the site, reinstate managed access and prepare it for future investment. Its final visitor offer, opening date and operating conditions should come from the Tasmanian Government, Circular Head Council or the future operator, not speculation.
Choose an established alternative today
For a current forest outing, use official information for the Julius River and Lake Chisholm walks before travelling. Smithton is the practical service centre, while the takayna / Tarkine guide and Marrawah help plan a broader far north-west trip.