[{"data":1,"prerenderedAt":196},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-low-head-deep-reefs-tamar-river-entrance":9,"spot-low-head-deep-reefs-tamar-river-entrance":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 Low Head Deep Reefs (Tamar River entrance) - How's the Spot","Check snorkeling conditions at Low Head Deep Reefs (Tamar River entrance), Tasmania. Good conditions, water 13.6°C, waves 0.51m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Flow-head-deep-reefs-tamar-river-entrance","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","Low Head Deep Reefs (Tamar River entrance)","At the mouth of the vast Tamar River estuary where it meets Bass Strait, Low Head Deep Reefs offer some of Tasmania's most spectacular underwater terrain. The deep rocky reefs drop steeply into the...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-41.068218,146.804559,{"@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 Low Head Deep Reefs (Tamar River entrance)",{"@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\u002Flow-head-deep-reefs-tamar-river-entrance",{"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":133,"area_boundary":56,"routes":56,"created_at":142,"updated_at":143,"today_conditions":144,"today_verdict_view":166,"images":192,"submitted_by":193,"region_name":26,"verification_status":195,"verified_at":56,"disputed":157,"verifier_count":5,"last_verified_display_name":56},"955f8fa1-e359-41cb-a570-494dd8f03696","low-head-deep-reefs-tamar-river-entrance","At the mouth of the vast Tamar River estuary where it meets Bass Strait, Low Head Deep Reefs offer some of Tasmania's most spectacular underwater terrain. The deep rocky reefs drop steeply into the channel, carved by powerful tidal flows that flush nutrient-rich water through the system. Here, dense kelp forests carpet the boulder-strewn seabed, interspersed with soft corals and sponge gardens. The convergence of river and ocean creates a dynamic ecosystem where pelagic species patrol the drop-offs. Divers and snorkelers who brave the cooler Tasmanian waters are rewarded with exceptional visibility, especially during winter months, and encounters with schooling fish, rays, and curious seals drawn to the productive reef system.","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",[110,115,121,124,128],{"name":111,"description":112,"severity":113,"season_start":36,"season_end":114},"Strong outgoing tide currents","Powerful currents rip through the Tamar River entrance as the large tidal volume exits into Bass Strait, creating hazardous conditions for snorkelers.","danger",12,{"name":116,"description":117,"severity":118,"season_start":119,"season_end":120},"Cold water temperatures","Tasmanian waters are cold year-round, requiring a thick wetsuit (7mm) or drysuit. Risk of hypothermia for inadequately equipped snorkelers.","warning",5,9,{"name":122,"description":123,"severity":118,"season_start":36,"season_end":114},"Boat traffic","The Tamar River entrance is a busy commercial and recreational boating channel with large vessels, requiring constant vigilance.",{"name":125,"description":126,"severity":127,"season_start":36,"season_end":114},"Deep reef drop-offs","The reef drops steeply into deep water with little warning, posing a risk to inexperienced snorkelers unfamiliar with depth changes.","caution",{"name":129,"description":130,"severity":127,"season_start":131,"season_end":132},"Variable visibility","Visibility can change rapidly with tidal flows and river runoff after heavy rain, occasionally dropping to near-zero in the estuary mouth.",6,11,{"directions":134,"parking":135,"facilities":136,"fees":140,"access_method":141},"From Launceston, take the East Tamar Highway (A8) north to George Town (51 km), then continue north on Low Head Road for approximately 6 km to the Low Head township. The deep reefs are accessed via boat or kayak launched from the Low Head boat ramp near the historic pilot station.","Limited parking available near the Low Head boat ramp and at the Low Head Historic Site. Arrive early on busy summer weekends.",[137,138,139],"parking","toilets","boat_ramp","No entry fee for the Low Head area. Boat ramp usage may have a small fee.","boat","2026-07-27T02:57:41.638074Z","2026-08-04T05:34:24.990804Z",{"verdict":145,"evaluated_at":146,"models":147},"go","2026-10-03T02:18:29.050481Z",[148,155,161],{"model_name":149,"is_favourable":150,"value":151,"threshold":152,"unit":153,"operator":154},"Wind Speed",true,0.8,10,"kn","lte",{"model_name":156,"is_favourable":157,"value":158,"threshold":159,"unit":160,"operator":154},"Wave Height",false,0.514,0.5,"m",{"model_name":162,"is_favourable":157,"value":163,"threshold":40,"unit":164,"operator":165},"Visibility",0.99,"","gte",{"verdict":145,"rating":167,"evaluated_at":146,"generated_at":146,"source":168,"confidence":169,"visibility":172,"parameters":173,"models_passed":40,"models_total":119},"Good","precomputed",{"level":170,"value":171},"High",100,{"score":163,"rating":56,"confidence":56},[174,176,181,184,189],{"name":156,"value":175,"label":56,"unit":160,"favourable":157,"score":36,"optimal_max":159,"marginal_max":36},0.51399104,{"name":177,"value":178,"label":56,"unit":179,"favourable":150,"score":43,"optimal_max":180,"marginal_max":114},"Swell Period",5.05,"s",8,{"name":149,"value":182,"label":56,"unit":153,"favourable":150,"score":43,"optimal_max":152,"marginal_max":183},0.7989182400000001,15,{"name":185,"value":186,"label":56,"unit":187,"favourable":157,"score":36,"optimal_max":119,"marginal_max":188},"Precipitation",13.5,"mm",20,{"name":190,"value":56,"label":191,"unit":164,"favourable":157,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",[],{"display_name":194},"Daniel","unverified",1791009170491]