[{"data":1,"prerenderedAt":238},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-eaglehawk-neck-sponge-gardens":9,"spot-eaglehawk-neck-sponge-gardens":51},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-03T06:32:05.526386Z",{"title":10,"description":11,"canonical_url":12,"og_image":13,"structured_data":14,"breadcrumbs":44},"Snorkeling Conditions at Eaglehawk Neck sponge gardens - How's the Spot","Check snorkeling conditions at Eaglehawk Neck sponge gardens, Tasmania. Excellent conditions, water 13.0°C, waves 0.16m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Feaglehawk-neck-sponge-gardens","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_eaglehawk-neck-sponge-gardens_0_238fc356c6e8.jpg",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Eaglehawk Neck sponge gardens","Deep-water sponge gardens on the rock walls and pinnacles surrounding the Forestier and Tasman Peninsulas, accessed by boat from Eaglehawk Neck. These cold-temperate gardens explode with colour — v...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-43.02124,147.923517,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Tasmania","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Eaglehawk Neck sponge gardens",{"@context":16,"@type":32,"itemListElement":33},"BreadcrumbList",[34,39,42],{"@type":35,"position":36,"name":37,"item":38},"ListItem",1,"Home","https:\u002F\u002Fhowsthespot.com",{"@type":35,"position":40,"name":26,"item":41},2,"https:\u002F\u002Fhowsthespot.com\u002Fexplore?region=tasmania",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=tasmania",{"label":18,"href":50},"\u002Fspots\u002Feaglehawk-neck-sponge-gardens",{"id":52,"name":18,"slug":53,"latitude":22,"longitude":23,"description":54,"difficulty":55,"image_url":13,"status":56,"tide_constituents":57,"hazard_entries":108,"access_info_structured":171,"area_boundary":113,"routes":113,"created_at":179,"updated_at":180,"today_conditions":181,"today_verdict_view":202,"images":229,"submitted_by":235,"region_name":26,"verification_status":237,"verified_at":113,"disputed":216,"verifier_count":5,"last_verified_display_name":113},"2f79025d-cd2e-4843-8c6f-d50947636372","eaglehawk-neck-sponge-gardens","Deep-water sponge gardens on the rock walls and pinnacles surrounding the Forestier and Tasman Peninsulas, accessed by boat from Eaglehawk Neck. These cold-temperate gardens explode with colour — vibrant sponges, soft corals, and fields of sea whips blanket the walls below 25 m, while huge schools of butterfly perch swirl overhead. The nutrient-rich Southern Ocean waters create an otherworldly tableau of invertebrate life that rivals tropical reefs in density and diversity. Only accessible via Eaglehawk Dive Centre, this site rewards experienced divers with unforgettable photographic opportunities and a genuine sense of discovery.","advanced","published",{"name":58,"amplitude":74,"phase":90,"latitude":22,"model":106,"epoch":107},[59,60,61,62,63,64,65,66,67,68,69,70,71,72,73],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[75,76,77,78,79,80,81,82,83,84,85,86,87,88,89],0.01288878254376405,0.008562341307081653,0.1625176027252124,0.012417464663252314,0.2765428864827135,0.0029298968963829765,0.008732475615402531,0.0031237297181147625,0.07461111608480264,0.10811637995820242,0.0512523219525258,0.026309541093446093,0.01108767621204379,0.02280306026402482,0.0037230217824996453,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],269.9967197364035,318.5687734858514,298.70636745984837,278.5872624829128,311.89778772064096,243.47222804490912,155.1037891494243,182.70890535420352,299.4296810956431,272.5142363318257,293.6300373658933,251.34995199726336,24.028429365277844,317.72551722665406,242.4652795873394,"EOT20","1992-01-01T00:00:00Z",[109,114,118,121,124,127,130,133,136,139,142,146,149,154,157,160,163,166],{"name":110,"description":111,"severity":112,"season_start":113,"season_end":113},"Deep water (25m+)","Sponge gardens start below 25 m depth, requiring advanced dive training and careful depth\u002Fbottom-time management.","warning",null,{"name":115,"description":116,"severity":117,"season_start":113,"season_end":113},"Cold water temperatures","Southern Ocean waters are consistently cold (10–16 °C), increasing risk of hypothermia without proper exposure protection.","caution",{"name":119,"description":120,"severity":112,"season_start":113,"season_end":113},"Weather-dependent access","Strong westerly winds (Roaring Forties) and rapidly moving Southern Ocean fronts can cancel or delay boat trips on short notice.",{"name":122,"description":123,"severity":117,"season_start":113,"season_end":113},"Strong currents","Tidal currents around exposed pinnacles and headlands can be strong, particularly at The Sisters rocks location.",{"name":125,"description":126,"severity":112,"season_start":113,"season_end":113},"Outgoing tide current","The narrow isthmus experiences strong tidal flows between Norfolk Bay and Pirates Bay, especially during outgoing tides.",{"name":128,"description":129,"severity":112,"season_start":113,"season_end":113},"Ocean swell and surging waves","Southern Ocean swells can produce strong waves and surging conditions around rock platforms at Pirates Bay.",{"name":131,"description":132,"severity":117,"season_start":113,"season_end":113},"Slippery and sharp rocks","Exposed rocky platforms and boulders at the Tessellated Pavement and Clyde Island area are slippery and sharp.",{"name":134,"description":135,"severity":117,"season_start":113,"season_end":113},"Cold water temperature","Water temperatures range from 10-15°C year-round; cold exposure is a serious risk without proper wetsuit.",{"name":137,"description":138,"severity":112,"season_start":113,"season_end":113},"Ocean swells and surf","Pirates Bay can receive ocean swells that create challenging conditions, especially on the eastern side exposed to the Tasman Sea. Check marine forecast before entering.",{"name":140,"description":141,"severity":117,"season_start":113,"season_end":113},"Rocks and sharp reef","The tessellated pavement and surrounding shoreline feature jagged sedimentary rock formations. Entry and exit require care to avoid cuts and slips.",{"name":143,"description":144,"severity":117,"season_start":36,"season_end":145},"Changing tides","Tidal movement through the narrow isthmus can create localised currents around the Neck. Snorkel near mid-tide slack water for safest conditions.",12,{"name":147,"description":148,"severity":112,"season_start":113,"season_end":113},"Strong ocean currents","Nutrient-rich currents flow around the Tasman Peninsula, creating powerful surges that can push snorkelers off course, especially around headlands and offshore sites.",{"name":150,"description":151,"severity":112,"season_start":152,"season_end":153},"Swell and surge","Exposed sites experience significant Southern Ocean swell and surge around sea caves and cliff walls, creating hazardous conditions in rough weather.",6,8,{"name":155,"description":156,"severity":117,"season_start":113,"season_end":113},"Limited shore access","Many dive sites are accessed via unsealed roads with limited parking or require boat access; some entry points involve scrambling over rocky terrain.",{"name":158,"description":159,"severity":112,"season_start":152,"season_end":153},"Strong ocean surge and currents","Exposed sites can experience powerful surge, especially around caves and canyons. Currents vary with tide and weather.",{"name":161,"description":162,"severity":117,"season_start":113,"season_end":113},"Slippery boat ramp","The Pirates Bay boat ramp can be slippery due to slime buildup, posing a slip hazard during entry and exit.",{"name":164,"description":165,"severity":117,"season_start":113,"season_end":113},"Variable visibility","Visibility can change rapidly with weather and swell conditions, ranging from 5-20m. Post-storm visibility can drop significantly.",{"name":167,"description":168,"severity":112,"season_start":169,"season_end":170},"Swell and rough seas","Exposed southern coastline can receive significant ocean swell, especially in winter months, making shore entries hazardous.",5,9,{"directions":172,"parking":173,"facilities":174,"fees":177,"access_method":178},"The sponge gardens are located off the rock walls and pinnacles surrounding the Forestier and Tasman Peninsulas, approximately 1 hour drive south-east of Hobart via the Arthur Highway (A9). The dive centre is based at Eaglehawk Neck on the Tasman Peninsula. Boat launch and guided trips are operated by Eaglehawk Dive Centre.","Parking available at Eaglehawk Dive Centre base near the jetty area in Eaglehawk Neck township.",[175,176],"toilets","parking","Guided boat dives arranged through Eaglehawk Dive Centre — typically includes 2 dives, gear, guide, hot drinks and snacks. Contact centre for current pricing.","boat","2026-07-27T02:57:30.355480Z","2026-08-04T05:30:44.786719Z",{"verdict":182,"evaluated_at":183,"models":184},"go","2026-10-03T02:16:15.310334Z",[185,192,197],{"model_name":186,"is_favourable":187,"value":188,"threshold":189,"unit":190,"operator":191},"Wind Speed",true,7.61,10,"kn","lte",{"model_name":193,"is_favourable":187,"value":194,"threshold":195,"unit":196,"operator":191},"Wave Height",0.16,0.5,"m",{"model_name":198,"is_favourable":187,"value":199,"threshold":40,"unit":200,"operator":201},"Visibility",2.46,"","gte",{"verdict":182,"rating":203,"evaluated_at":183,"generated_at":183,"source":204,"confidence":205,"visibility":208,"parameters":209,"models_passed":228,"models_total":169},"Excellent","precomputed",{"level":206,"value":207},"High",100,{"score":199,"rating":113,"confidence":113},[210,212,217,220,225],{"name":193,"value":211,"label":113,"unit":196,"favourable":187,"score":43,"optimal_max":195,"marginal_max":36},0.16000000000000003,{"name":213,"value":214,"label":113,"unit":215,"favourable":216,"score":36,"optimal_max":153,"marginal_max":145},"Swell Period",11.5,"s",false,{"name":186,"value":218,"label":113,"unit":190,"favourable":187,"score":43,"optimal_max":189,"marginal_max":219},7.605633772168616,15,{"name":221,"value":222,"label":113,"unit":223,"favourable":187,"score":43,"optimal_max":169,"marginal_max":224},"Precipitation",1.8,"mm",20,{"name":226,"value":113,"label":227,"unit":200,"favourable":187,"score":43,"optimal_max":113,"marginal_max":113},"Tidal Phase","slack",4,[230],{"id":231,"image_url":13,"sort_order":5,"is_primary":187,"moderation_status":232,"license":233,"license_url":234,"attribution":113,"author_name":113},"995627ea-bb35-4741-beba-705d5df718d4","approved","CC BY-SA 3.0","https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F3.0\u002F",{"display_name":236},"Daniel","unverified",1791009148751]