[{"data":1,"prerenderedAt":197},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-barrel-rock":9,"spot-barrel-rock":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 Barrel Rock - How's the Spot","Check snorkeling conditions at Barrel Rock, Tasmania. Good conditions, water 13.6°C, waves 0.51m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fbarrel-rock","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","Barrel Rock","Barrel Rock is a submerged reef marked by a navigational beacon near the entrance to Port Dalrymple at Low Head, on Tasmania's north-east coast. This site is part of a rich temperate reef system su...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-41.066503,146.791249,{"@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 Barrel Rock",{"@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\u002Fbarrel-rock",{"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":136,"area_boundary":56,"routes":56,"created_at":143,"updated_at":144,"today_conditions":145,"today_verdict_view":167,"images":193,"submitted_by":194,"region_name":26,"verification_status":196,"verified_at":56,"disputed":158,"verifier_count":5,"last_verified_display_name":56},"174efa62-1f7f-4487-82ec-9466a69b17b8","barrel-rock","Barrel Rock is a submerged reef marked by a navigational beacon near the entrance to Port Dalrymple at Low Head, on Tasmania's north-east coast. This site is part of a rich temperate reef system surveyed by the Reef Life Survey program, with rocky substrates supporting diverse cold-water marine assemblages. Snorkelers here are treated to clear waters over broken reef terrain, with the beacon itself serving as a reference point. The site sits at the mouth of the Tamar River where tidal flows create dynamic conditions, making it a wild and rewarding spot for experienced snorkelers seeking a remote, reef-focused adventure.","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",[110,114,118,121,125,128,133],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Strong tidal currents","Located near the mouth of the Tamar River, Barrel Rock experiences powerful tidal flows, especially at mid-tide transitions. The rock uncovers at half ebb.","danger",{"name":115,"description":116,"severity":117,"season_start":56,"season_end":56},"Submerged reef at low tide","Barrel Rock uncovers at half ebb, meaning the reef can be extremely shallow or awash at low tide, creating a collision hazard for swimmers and boats.","warning",{"name":119,"description":120,"severity":117,"season_start":56,"season_end":56},"Boat traffic","The site is marked by a beacon in a navigable channel near Port Dalrymple, with vessel traffic entering and exiting the Tamar River.",{"name":122,"description":123,"severity":124,"season_start":56,"season_end":56},"Cold water temperatures","Temperate Tasmanian waters require thick wetsuits year-round; water temps rarely exceed 18°C even in summer.","caution",{"name":126,"description":127,"severity":117,"season_start":56,"season_end":56},"Outgoing tide current","Strong tidal flow from Bass Strait can rip through the estuary, creating dangerous conditions for swimmers and snorkelers on the outgoing tide.",{"name":129,"description":130,"severity":124,"season_start":131,"season_end":132},"Cold water temperature","Temperate Tasmanian waters can drop below 12°C even in summer, increasing risk of hypothermia without proper exposure protection.",5,12,{"name":134,"description":135,"severity":124,"season_start":56,"season_end":56},"Limited visibility","As a tidal estuary, sediment suspension can reduce visibility significantly, especially after rain or on strong tidal flows.",{"directions":137,"parking":138,"facilities":139,"fees":141,"access_method":142},"Barrel Rock is accessible from Low Head, approximately 8 km north of George Town on the east bank of the Tamar River mouth. Follow Low Head Road to the Low Head Pilot Station area; the reef lies off the breakwater south of the Low Head light structure. The beacon is visible from shore.","Limited roadside parking near the Low Head Pilot Station and lighthouse precinct.",[140],"parking","None","shore_entry","2026-07-27T02:57:41.407525Z","2026-08-04T05:30:44.786501Z",{"verdict":146,"evaluated_at":147,"models":148},"go","2026-10-03T02:21:49.207402Z",[149,156,162],{"model_name":150,"is_favourable":151,"value":152,"threshold":153,"unit":154,"operator":155},"Wind Speed",true,0.8,10,"kn","lte",{"model_name":157,"is_favourable":158,"value":159,"threshold":160,"unit":161,"operator":155},"Wave Height",false,0.514,0.5,"m",{"model_name":163,"is_favourable":158,"value":164,"threshold":40,"unit":165,"operator":166},"Visibility",0.99,"","gte",{"verdict":146,"rating":168,"evaluated_at":147,"generated_at":147,"source":169,"confidence":170,"visibility":173,"parameters":174,"models_passed":40,"models_total":131},"Good","precomputed",{"level":171,"value":172},"High",100,{"score":164,"rating":56,"confidence":56},[175,177,182,185,190],{"name":157,"value":176,"label":56,"unit":161,"favourable":158,"score":36,"optimal_max":160,"marginal_max":36},0.51399104,{"name":178,"value":179,"label":56,"unit":180,"favourable":151,"score":43,"optimal_max":181,"marginal_max":132},"Swell Period",5.05,"s",8,{"name":150,"value":183,"label":56,"unit":154,"favourable":151,"score":43,"optimal_max":153,"marginal_max":184},0.7989182400000001,15,{"name":186,"value":187,"label":56,"unit":188,"favourable":158,"score":36,"optimal_max":131,"marginal_max":189},"Precipitation",13.5,"mm",20,{"name":191,"value":56,"label":192,"unit":165,"favourable":158,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",[],{"display_name":195},"Daniel","unverified",1791009129057]