The Hunter Island Group sits off north‑west Tasmania in Bass Strait as a remote cluster of granite and sandy islets, stretching between Cape Grim and King Island. From the water it reads as a scattered archipelago of steep cliffs, low dunes and vegetated stacks where seabird colonies and exposed headlands set the character: often raw, frequently wind‑scoured and rewarding for sailors who value solitude and clear, direct passages. The islands are not a conventional harbour complex; they are a string of sheltered pockets tucked between open Bass Strait conditions and the lee of larger islands such as Three Hummock and Robbins Island.
Sailing here is best thought of as coastal cruising with wilderness character rather than marina‑based voyaging. Short sheltered legs between anchorages are possible in settled conditions, while passages to and from ports on the Tasmanian mainland or King Island can expose crews to significant fetch and tidal effects. The area suits informed weekend or week‑long cruises for competent skippers with sea‑going boats, not casual trailer sailors. Good preparation, reliable charts, a plan for safe retreat and respect for wildlife‑protection zones are core to enjoying the islands.
Although the waters around the group can be exposed to Bass Strait swell and strong seasonal winds, they also offer sheltered bights, quiet anchoring coves and visually striking landfalls. The Hunter group connects naturally with cruising routes that include Three Hummock, Robbins and the Trefoil and King Island regions, forming a logical northern Tasmania circuit for those seeking remote anchorages and significant seabird and marine wildlife experience.
Sailing the area
The Hunter Island Group lies in western Bass Strait off north‑west Tasmania and reads from the water as a tight archipelago of granite ridges, reef‑fringes and low skerries rather than a single sheltered harbour. Hunter Island itself is the largest landform between King Island to the north‑west and the Tasmanian mainland around Cape Grim to the south‑east; nearby Three Hummock and Robbins Island form the wider coastal context. Channels between the islets break long Bass Strait fetch, so the group provides occasional lee but never extensive, all‑weather shelter — open sea conditions and southerly swell wrap into the area readily and prevailing westerly to north‑westerly winds dominate the seascape. That creates a mix of short, steep seas on wind against tide and calmer bays on protected flanks.
Sailing here is best thought of as island‑hopping with an emphasis on exposure management. Narrow gaps and tidal flows produce local sets and eddies; some passages can develop uncomfortable overfalls in stronger winds. Practical anchorages and lee berths are concentrated on southern and eastern sheltered pockets of the larger islands, while western sides often afford protection when the wind is from the east. Approaches from Cape Grim and the north‑west coast typically cross exposed water: passages from King Island or the west coast require planning for fetch, current and the possibility of quick weather change. Low, wind‑scoured features and reef lines can be hard to see in poor light or swell, so daylight approaches, conservative navigation speeds and updated chart use are normal practice.
Best time to sail
The most favourable months to sail the Hunter Island Group are in the late summer to early autumn window — roughly February to April — when the Tasmanian climate typically delivers longer fine spells, warmer air and sea temperatures and fewer strong synoptic systems crossing Bass Strait. During this period you are most likely to find calmer sea states for island approaches, more predictable south‑westerly swell patterns and extended daylight for island exploration and safer landings. For weekend or short cruising trips this is the period that most consistently balances comfort and accessibility.
Spring (September–November) stands out as the season with the greatest wind variability; frequent frontal systems and stronger north‑west to west winds commonly build a choppy Bass Strait and make passages between the islands and mainland more demanding. Winter (June–August) brings the highest frequency of deep low‑pressure systems, gales and large swell — conditions that routinely restrict safe access to exposed anchorages and narrow channels for small yachts. Even in summer, expect localised wind acceleration around headlands, residual swell through passages and occasional sea fog.
Main sailing areas
The Hunter Island Group fragments into clearly different sailing zones: exposed Bass Strait passages between the Tasmanian coast, Three Hummock and Hunter islands; the tidal, shallow inshore waters around Robbins Island and Robbins Passage; and the island‑edge, reef‑studded waters that surround smaller features such as Albatross, Walker and Trefoil islets. Understanding how these areas connect is central to planning — offshore legs link to the inshore channels, and narrow passages concentrate tidal streams and swell differently from the open Bass Strait crossings.
Hunter Island and its nearby rocky islets form the north‑western rim of the group. From the water the islands present low, grassy profiles with fringing reefs; their seaward sides face the full fetch of Bass Strait while sheltered lee anchors are limited and weather dependent. The group is often an objective for passagemakers rather than a primary cruising ground for small boats, because rounding the low islands can become a seasock in fresh conditions and visual navigation is harder when visibility falls.
Sailing character: exposed to large fetch on seaward approaches, broken water near reefs.
Typical users: passagemakers and larger cruising yachts with good seakeeping.
Three Hummock is the largest, higher‑relief island in the group and changes the local wind and wave patterns. Headlands produce wind acceleration and funnel currents in nearby channels, while its northern and eastern flanks open directly to Bass Strait. Crews visit Three Hummock for sheltered exploration on calmer days, using it as a waypoint between Robbins Island and more distant passages to King Island and the Furneaux group.
Sailing character: more wind‑affected around headlands, useful lookout and shelter when lee conditions prevail.
Connections: intermediate stop for north‑east approaches from Smithton or Montagu.
Robbins Island and the tidal channels separating it from the mainland are the most sheltered element of the wider area but are dominated by strong tidal flows and sand‑mud flats.
Anchorages and overnight stops
Stopping in the Hunter Island Group is a remote, self-reliant activity: there are no marinas, fuel pontoons or formal visitor berths within the group. Overnight options consist of a small number of sheltered coves and lee bights on the larger islands, occasional informal moorings used by local operators or researchers, and brief sheltered anchorages behind islets when weather permits. Expect simple sand-and-weed holding interspersed with rocky reef, kelp and foul ground; holding quality is variable between bays and changes with tide and swell, so treat every anchorage as provisional rather than permanent. Plan to carry all fuel, water, spare parts and waste capacity you need for the time you intend to be independent of shore services.
Cave Bay and the eastern lee of Hunter Island are the most commonly referenced overnight options for yachts transiting inside the group. They provide relatively good shelter from westerly or north-westerly quadrants in moderate conditions but are exposed to long-period swell when southerlies or west-north-west systems dominate. Shepherds Bay and other small indentations behind nearby islets offer sanctuary from southerly through westerly winds for short stays; approaches are often narrow with tidal flows that can set through channels. Mawson Bay and similar lee coves are used as day or overnight anchorages when offshore conditions make passage undesirable, but they afford little protection from strong north-west or west winds and can admit swell at their open ends.
There are no dedicated haul-out or hardstand facilities within the group and shore access is generally informal — rocky beaches, low cliffs and short sand spits that suit a sturdy dinghy but not all crews.
Arriving and getting around
Approaching the Hunter Island Group from offshore first requires planning for exposed Bass Strait conditions and limited services. Use current Australian Hydrographic Office charts and the latest Notices to Mariners for the Bass Strait and the Hunter group; these are the definitive navigation references for aids to navigation, reported hazards and chart updates. Monitor maritime safety broadcasts and check Marine and Safety Tasmania (MAST) for local operational area notices, temporary exclusions or changes to assistance availability before committing to an approach. Vessels arriving from the west or north will normally pass wide of the group until daylight and settled sea states make a landing practicable.
There are no regular ferry services or staffed refuelling facilities within the island group. The nearest commercial ports and fuel points are on north‑west Tasmania and on King Island; visitors should plan fuel, water and spare parts ashore in advance and expect to rely on mainland services for significant repairs. Many shorelines are rocky, access is limited and several islands sit inside conservation or marine reserve zones with access rules and permit requirements. Contact the Tasmanian Parks and Wildlife Service about permitted landings and any camping or biosecurity rules.
Facilities ashore
There are effectively no public shore facilities within the Hunter Island Group itself: the islands are conservation land with no developed wharves, fuel, shops, potable water or accommodation. Visitors should plan to be self-sufficient for fuel, water, food, waste and emergency equipment when intending to visit the islands or to anchor off them. Landing places are limited — many beaches are remote, rocky or subject to heavy surf — and shore access can be restricted for conservation or safety reasons.
For provisioning, repairs and fuel you must look to mainland north‑west Tasmania or to King Island. The nearest practical service hubs are Smithton and Stanley on the Tasmanian mainland for basic supplies, boat ramps and some marine services, while Currie and Grassy on King Island offer the closest fuel, grocery and mechanical options for offshore cruising. Trailer ramps and visitor pontoons are available at selected north‑west ports; haul‑out and specialist boatyard services are only at larger centres. Mobile coverage is unreliable across the group, so plan logistics and crew changes to coincide with towns that have transport links and emergency services.
Local hazards and limitations
The Hunter Island Group lies in the exposed waters of Bass Strait and is dominated by open-ocean conditions rather than sheltered harbour sailing. Expect long-period swell that can wrap into bays and make seemingly protected coves uncomfortable; seas build rapidly with passing lows and a freshening westerly or southerly can produce steep, confused seas. Many of the islands are rimmed by reefs, rocky shoals and submerged ledges that extend irregularly from shore, so close-in navigation is inherently higher risk than in mainland estuaries. Aids to navigation are sparse across parts of the group, and there is little built infrastructure to confirm position once ashore.
Tidal streams and locally altered wind set around headlands and through narrow gaps can create eddies and unexpected set; these effects make manoeuvring near shore and in confined anchorages more demanding. Holding varies: areas with kelp, weed or rocky bottoms frequently give poor scope for long-term anchoring and may require frequent checks or relocation. Commercial and fishing vessels transit Bass Strait and occasional fast-moving ships use main corridors; fishing gear can extend beyond visible markers.
Regulations and responsible access
Much of the Hunter Island Group and surrounding waters are managed as reserved land and marine reserve zones; landing, camping, anchoring and any commercial activity are subject to Tasmania Parks and Wildlife Service permissions and the National Parks and Reserved Land Regulations. Several islands carry strict nature‑reserve protections where unauthorised landings or disturbance of wildlife are prohibited or require a permit, and some littoral and reef habitats are managed to restrict anchoring to protect benthic communities.
Visitors must also comply with Tasmanian fisheries rules: recreational take, gear and size/bag limits apply and additional no‑take or restricted zones may exist inside marine reserves. Biosecurity and wildlife protection are practical obligations—boats should minimse transfer risk (cleaning gear and avoiding quarantine pests), keep clear of seabird colonies and observe seasonal breeding sensitivities. Marine and Safety Tasmania operational area classifications affect vessel equipment and crew requirements for passages to and between the islands.
Suggested sailing experiences
Short island circuit (2–4 days) — For cruising yachts with seaworthy hulls and experienced crews, a short circuit visiting Hunter Island, Robbins Island and nearby islets offers a concentrated Bass Strait experience. Approach from the north-west Tasmanian coast (Smithton area) when a settled window arrives, use sheltered coves on the lee of larger islands for overnighting and plan daytime hops for wildlife viewing. Expect exposed passages between islands and use sheltered anchorages only for brief rests; this is best as a short trip timed to avoid strong systems in Bass Strait.
Small trailer‑sailers and dayboats suit sheltered days spent close to shore around Hunter Island, Albatross Island and the Petrel groups. These islands form part of an Important Bird Area; much of the interest is from the water or on managed shore visits where permitted. Short sails between protected bays let crews launch a dinghy for close-up seabird and shorebird watching, but plan to remain off sensitive breeding sites and restrict noise and disturbance.
Best for: small cruisers and trailer boats.
Limitations: seasonal nesting and access restrictions; limited shore facilities.
For passagemakers crossing or running the north‑west Bass Strait, use the Hunter Island Group as a navigational stage or contingency stop. The islands provide limited shelter and should never be treated as guaranteed refuge; they are most useful for a quick rest, weather checks and wildlife observations when conditions permit.
Who this destination suits
Remote, exposed and ecologically sensitive, the Hunter Island Group chiefly suits experienced bluewater sailors and well‑found coastal cruisers rather than casual day‑sailors or trailer‑boats. Passage planning, reliable navigation gear and vessels capable of handling Bass Strait swell and strong westerlies are essential; sheltered options are limited and shore services minimal. Crewed boats are preferable for overnight passages and offshore weather changes, though competent single‑handers with heavy‑weather experience may attempt crossings.
The group is attractive to passagemakers traversing between north‑west Tasmania and King Island, small expedition‑style cruising crews and researchers. It is not a cruising base: expect few visitor facilities, conservation closures and biosecurity expectations that restrict beaching and equipment transfer. Boats with good seakeeping, secure anchoring or mooring arrangements, ample fuel, freshwater capacity and self‑sufficiency for basic repairs will get most from a visit.
Sources consulted: australianmarineparks.gov.au, mast.tas.gov.au, en.wikipedia.org, parks.tas.gov.au, ourtasmania.com.au, tasfieldnats.org.au, gutenberg.org, nre.tas.gov.au, jackandjude.com, orcv.org.au, splashmaritime.com.au, docs.nopsema.gov.au