[{"data":1,"prerenderedAt":193},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-shear-rock-shear-reef-tamar-river":9,"spot-shear-rock-shear-reef-tamar-river":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 Shear Rock \u002F Shear Reef (Tamar River) - How's the Spot","Check snorkeling conditions at Shear Rock \u002F Shear Reef (Tamar River), Tasmania. Good conditions, water 13.6°C, waves 0.55m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fshear-rock-shear-reef-tamar-river","https:\u002F\u002Fhowsthespot.com\u002Fog-default.png",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Shear Rock \u002F Shear Reef (Tamar River)","Shear Rock and Shear Reef sit near the mouth of the kanamaluka\u002FTamar River estuary, where the river meets the wild Bass Strait swells. This is a dramatic, current-swept temperate reef system with a...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-41.071501,146.783031,{"@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 Shear Rock \u002F Shear Reef (Tamar River)",{"@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\u002Fshear-rock-shear-reef-tamar-river",{"id":52,"name":18,"slug":53,"latitude":22,"longitude":23,"description":54,"difficulty":55,"image_url":56,"status":57,"tide_constituents":58,"hazard_entries":109,"access_info_structured":130,"area_boundary":56,"routes":56,"created_at":138,"updated_at":139,"today_conditions":140,"today_verdict_view":162,"images":189,"submitted_by":190,"region_name":26,"verification_status":192,"verified_at":56,"disputed":153,"verifier_count":5,"last_verified_display_name":56},"b09c7349-23bf-4fb6-90a3-f1325c654608","shear-rock-shear-reef-tamar-river","Shear Rock and Shear Reef sit near the mouth of the kanamaluka\u002FTamar River estuary, where the river meets the wild Bass Strait swells. This is a dramatic, current-swept temperate reef system with a steep rocky wall dropping to around 24 m — a magnet for adventurous divers and strong snorkellers. The site sits just off the boat ramp near Low Head, offering a raw Tasmanian underwater landscape shaped by powerful tidal flows.","advanced",null,"published",{"name":59,"amplitude":75,"phase":91,"latitude":22,"model":107,"epoch":108},[60,61,62,63,64,65,66,67,68,69,70,71,72,73,74],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[76,77,78,79,80,81,82,83,84,85,86,87,88,89,90],0.038441025549335095,0.00871533427312287,0.170385958197254,0.025238748115664417,1.1225286004714368,0.033155965206742515,0.008459306419727735,0.0026066163601268736,0.2507988725825732,0.1166409810599324,0.05432765942749922,0.02830560562174204,0.011561028292357943,0.14329209807633034,0.01440791811116458,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],332.38584431518984,343.3389788406761,303.7272290732719,199.68394043281626,34.56346205409506,332.5389977616234,168.22327506182535,242.80085045344998,5.5092068872531295,274.83859651544526,298.6282023854586,258.4597562260905,15.884496663005137,187.44364309644504,175.33030089861745,"EOT20","1992-01-01T00:00:00Z",[110,114,118,121,127],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Strong tidal currents","The Tamar River estuary experiences powerful tidal flows at the river mouth, especially around the reef system near the heads.","danger",{"name":115,"description":116,"severity":117,"season_start":56,"season_end":56},"Boat traffic","Close proximity to the main shipping channel and boat ramp; vessel traffic can be heavy.","warning",{"name":119,"description":120,"severity":117,"season_start":56,"season_end":56},"Deep water drop-off","The rocky reef drops steeply into deep water (24 m+), creating rapid depth changes hazardous for casual snorkellers.",{"name":122,"description":123,"severity":124,"season_start":125,"season_end":126},"Cold water temperatures","Tasmanian temperate waters are cold year-round, increasing risk of cold shock and hypothermia without proper wetsuit.","caution",5,11,{"name":128,"description":129,"severity":124,"season_start":56,"season_end":56},"Shark refuge area","The Tamar River is a designated Shark Refuge Area; sharks including potentially large species are present.",{"directions":131,"parking":132,"facilities":133,"fees":136,"access_method":137},"Located near Low Head at the mouth of the Tamar River, roughly 40 km north of Launceston. Accessible by boat launched from the Low Head boat ramp. The site is just out from the boat ramp near the river heads. Follow East Arm Road to the Low Head boat ramp area.","Parking available at the Low Head boat ramp facility.",[134,135],"parking","boat_ramp","No known fees for snorkelling; boat ramp use is free public access.","boat","2026-07-27T02:57:41.364199Z","2026-08-04T05:36:16.070356Z",{"verdict":141,"evaluated_at":142,"models":143},"go","2026-10-03T02:19:02.485252Z",[144,151,157],{"model_name":145,"is_favourable":146,"value":147,"threshold":148,"unit":149,"operator":150},"Wind Speed",true,0.8,10,"kn","lte",{"model_name":152,"is_favourable":153,"value":154,"threshold":155,"unit":156,"operator":150},"Wave Height",false,0.55,0.5,"m",{"model_name":158,"is_favourable":153,"value":159,"threshold":40,"unit":160,"operator":161},"Visibility",0.99,"","gte",{"verdict":141,"rating":163,"evaluated_at":142,"generated_at":142,"source":164,"confidence":165,"visibility":168,"parameters":169,"models_passed":40,"models_total":125},"Good","precomputed",{"level":166,"value":167},"High",100,{"score":159,"rating":56,"confidence":56},[170,172,178,181,186],{"name":152,"value":171,"label":56,"unit":156,"favourable":153,"score":36,"optimal_max":155,"marginal_max":36},0.5496736867164004,{"name":173,"value":174,"label":56,"unit":175,"favourable":146,"score":43,"optimal_max":176,"marginal_max":177},"Swell Period",5.05,"s",8,12,{"name":145,"value":179,"label":56,"unit":149,"favourable":146,"score":43,"optimal_max":148,"marginal_max":180},0.7989182400000001,15,{"name":182,"value":183,"label":56,"unit":184,"favourable":153,"score":36,"optimal_max":125,"marginal_max":185},"Precipitation",13.5,"mm",20,{"name":187,"value":56,"label":188,"unit":160,"favourable":153,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",[],{"display_name":191},"Daniel","unverified",1791009195458]