[{"data":1,"prerenderedAt":184},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-grant-s-lagoon":9,"spot-grant-s-lagoon":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 Grant's Lagoon - How's the Spot","Check snorkeling conditions at Grant's Lagoon, Tasmania. Fair conditions, waves 0.00m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fgrant-s-lagoon","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","Grant's Lagoon","Grant's Lagoon is a small, protected coastal lagoon tucked behind the dunes at Binalong Bay on Tasmania's Bay of Fires coast. Its calm, shallow, clear waters are sheltered from open-ocean swell by...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-41.252236,148.294124,{"@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 Grant's Lagoon",{"@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\u002Fgrant-s-lagoon",{"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":123,"area_boundary":56,"routes":56,"created_at":132,"updated_at":133,"today_conditions":134,"today_verdict_view":153,"images":180,"submitted_by":181,"region_name":26,"verification_status":183,"verified_at":56,"disputed":162,"verifier_count":5,"last_verified_display_name":56},"294f56af-83ec-4690-8754-f3b64ad7faed","grant-s-lagoon","Grant's Lagoon is a small, protected coastal lagoon tucked behind the dunes at Binalong Bay on Tasmania's Bay of Fires coast. Its calm, shallow, clear waters are sheltered from open-ocean swell by a sandbar, creating an ideal natural pool for beginner snorkelers. The lagoon sits within an area famed for its orange-hued granite boulders and crystal-clear waters, offering excellent visibility over sandy-bottomed shallows punctuated by scattered rocky reefs. Snorkelers can explore seagrass beds and sand patches in the relatively warm summer months, with easy shore access directly from the beach within the Bay of Fires Conservation Area.","beginner",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],0.01681681495678956,0.008807667069274976,0.15672520603219442,0.015417428127167747,0.38432055662832065,0.003793289290821909,0.0069157041653185375,0.004297328071203765,0.09527062163726828,0.10148406089087247,0.048546075661138506,0.02550066008986039,0.01042825291525657,0.05536010418460464,0.0004320122081687148,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],269.2900196588013,341.7277647033798,305.1777942331681,300.06845063003055,312.0106023265895,245.4319101116954,173.55244455488094,173.22904646829602,299.7038829151741,276.0549311261233,302.40174644324134,250.40449272595612,31.611031516359926,318.5498242178645,208.12865063437226,"EOT20","1992-01-01T00:00:00Z",[110,115,118],{"name":111,"description":112,"severity":113,"season_start":43,"season_end":114},"Tidal current at sandbar mouth","The lagoon's connection to the ocean can create tidal currents around the sandbar opening, especially on an outgoing tide.","caution",10,{"name":116,"description":117,"severity":113,"season_start":56,"season_end":56},"Cold water temperatures","Water temperatures can drop significantly (10-16 °C), increasing the risk of cold-water shock even in summer.",{"name":119,"description":120,"severity":113,"season_start":121,"season_end":122},"Reduced visibility from stirred sediment","Sand and sediment can be stirred up by wind or swell, temporarily reducing visibility in the shallow lagoon.",6,9,{"directions":124,"parking":125,"facilities":126,"fees":130,"access_method":131},"From Binalong Bay, follow Binalong Bay Road (C850) approximately 8 km to the turn-off for Grants Lagoon. The campground and day-use area are well-signposted, with direct beach access to the lagoon.","Day-use parking area available near the campground, with spaces suitable for cars and campervans.",[127,128,129],"parking","toilets","picnic_tables","No fees for day-use or beach access.","shore_entry","2026-07-27T02:57:39.020779Z","2026-08-04T05:30:44.786679Z",{"verdict":135,"evaluated_at":136,"models":137},"marginal","2026-10-03T02:21:48.064127Z",[138,144,148],{"model_name":139,"is_favourable":140,"value":141,"threshold":114,"unit":142,"operator":143},"Wind Speed",true,1.41,"kn","lte",{"model_name":145,"is_favourable":140,"value":5,"threshold":146,"unit":147,"operator":143},"Wave Height",0.5,"m",{"model_name":149,"is_favourable":140,"value":150,"threshold":40,"unit":151,"operator":152},"Visibility",2.31,"","gte",{"verdict":135,"rating":154,"evaluated_at":136,"generated_at":136,"source":155,"confidence":156,"visibility":159,"parameters":160,"models_passed":43,"models_total":175},"Fair","precomputed",{"level":157,"value":158},"Medium",75,{"score":150,"rating":56,"confidence":56},[161,163,168,171,177],{"name":145,"value":5,"label":56,"unit":147,"favourable":162,"score":36,"optimal_max":146,"marginal_max":36},false,{"name":164,"value":5,"label":56,"unit":165,"favourable":162,"score":36,"optimal_max":166,"marginal_max":167},"Swell Period","s",8,12,{"name":139,"value":169,"label":56,"unit":142,"favourable":140,"score":43,"optimal_max":114,"marginal_max":170},1.41122784,15,{"name":172,"value":173,"label":56,"unit":174,"favourable":140,"score":43,"optimal_max":175,"marginal_max":176},"Precipitation",3.9,"mm",5,20,{"name":178,"value":56,"label":179,"unit":151,"favourable":140,"score":43,"optimal_max":56,"marginal_max":56},"Tidal Phase","slack",[],{"display_name":182},"Daniel","unverified",1791009156704]