[{"data":1,"prerenderedAt":185},["ShallowReactive",2],{"leaderboard-total":3,"spot-great-detached-reef":9,"spot-seo-great-detached-reef":150},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-03T06:32:05.526386Z",{"id":10,"name":11,"slug":12,"latitude":13,"longitude":14,"description":15,"difficulty":16,"image_url":17,"status":18,"tide_constituents":19,"hazard_entries":70,"access_info_structured":88,"area_boundary":17,"routes":17,"created_at":92,"updated_at":93,"today_conditions":94,"today_verdict_view":117,"images":145,"submitted_by":146,"region_name":148,"verification_status":149,"verified_at":17,"disputed":100,"verifier_count":5,"last_verified_display_name":17},"2c250240-5fe3-49ff-8a85-4c63ba0256da","Great Detached Reef","great-detached-reef",-13.7167,144.0667,"Great Detached Reef is a vast, pristine coral complex in the remote northern Great Barrier Reef, sitting atop an ancient submerged fossil mountain range. Unlike the crowded inner reefs, this untouched outer-barrier system offers extraordinary snorkelling on bommies and lagoon walls swarming with pelagics. The reef's NE entrance creates a mesmerising dead-spot of gently swirling water where strong incoming currents rush past on both sides — a natural amphitheatre of coral gardens teeming with giant groper, dog-tooth tuna, manta rays, turtles, and endless grey whalers. The site is also known for ancient ship anchors embedded in the coral along its western side, silent relics of 19th-century maritime history.","advanced",null,"published",{"name":20,"amplitude":36,"phase":52,"latitude":13,"model":68,"epoch":69},[21,22,23,24,25,26,27,28,29,30,31,32,33,34,35],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[37,38,39,40,41,42,43,44,45,46,47,48,49,50,51],0.02095463995394676,0.022320106080158504,0.30333207753031965,0.08512376208275933,0.520704555739875,0.005896377746246827,0.010389506340855387,0.007055437523640987,0.17300039002162987,0.14616327699850828,0.09048176174103036,0.027262449723056793,0.006920080730160989,0.30594712779913674,0.0236706390097328,[53,54,55,56,57,58,59,60,61,62,63,64,65,66,67],310.49869616045953,50.088639520721664,42.04352096136203,303.68422292243514,348.6915734247713,244.61630520006827,19.230655511833728,66.29329776437226,330.3143442981755,15.952992115603811,38.6268220515605,335.071366775656,330.89661915047714,307.4506801739616,290.7947842965495,"EOT20","1992-01-01T00:00:00Z",[71,75,79,83],{"name":72,"description":73,"severity":74,"season_start":17,"season_end":17},"Strong tidal currents","Strong incoming tidal currents rush past the NE entrance, creating powerful rips that can sweep snorkelers away from the reef. Only experienced snorkelers should attempt these waters.","danger",{"name":76,"description":77,"severity":78,"season_start":17,"season_end":17},"Grey whaler sharks","Multiple large sharks, particularly grey whalers (reef sharks), are frequently seen patrolling the reef walls. While generally not aggressive, their presence requires caution and situational awareness.","caution",{"name":80,"description":81,"severity":82,"season_start":17,"season_end":17},"Extreme remote location","The reef is extremely remote — over 100 km from the nearest town (Cooktown) with no emergency services, cell reception, or evacuation infrastructure onsite.","warning",{"name":84,"description":85,"severity":82,"season_start":86,"season_end":87},"Exposed weather conditions","Exposed outer-reef location with limited shelter. Strong southeasterly trade winds can create rough sea states and hazardous conditions, especially May–September.",5,9,{"directions":89,"parking":90,"facilities":17,"fees":17,"access_method":91},"Great Detached Reef lies approximately 120 km north-northeast of Cooktown, far north Queensland. Access is by private vessel or dedicated liveaboard dive\u002Fsnorkel tours departing from Cooktown or Cairns. The reef is remote and not serviced by daily tourist ferries.","No parking at the reef. If departing from Cooktown, parking is available at the Cooktown Marina or boat ramp precincts. For Cairns departures, use long-term tour operator parking lots in the Cairns Marina area.","snorkel_tour","2026-07-27T02:56:48.499441Z","2026-08-04T05:30:44.786695Z",{"verdict":95,"evaluated_at":96,"models":97},"go","2026-10-03T02:16:10.493044Z",[98,105,111],{"model_name":99,"is_favourable":100,"value":101,"threshold":102,"unit":103,"operator":104},"Wind Speed",false,10.27,10,"kn","lte",{"model_name":106,"is_favourable":107,"value":108,"threshold":109,"unit":110,"operator":104},"Wave Height",true,0.12,0.5,"m",{"model_name":112,"is_favourable":100,"value":113,"threshold":114,"unit":115,"operator":116},"Visibility",1.81,2,"","gte",{"verdict":95,"rating":118,"evaluated_at":96,"generated_at":96,"source":119,"confidence":120,"visibility":123,"parameters":124,"models_passed":126,"models_total":86},"Good","precomputed",{"level":121,"value":122},"High",100,{"score":113,"rating":17,"confidence":17},[125,128,134,137,142],{"name":106,"value":108,"label":17,"unit":110,"favourable":107,"score":126,"optimal_max":109,"marginal_max":127},3,1,{"name":129,"value":130,"label":17,"unit":131,"favourable":107,"score":126,"optimal_max":132,"marginal_max":133},"Swell Period",3.6,"s",8,12,{"name":99,"value":135,"label":17,"unit":103,"favourable":100,"score":127,"optimal_max":102,"marginal_max":136},10.2731944,15,{"name":138,"value":139,"label":17,"unit":140,"favourable":107,"score":126,"optimal_max":86,"marginal_max":141},"Precipitation",2.1,"mm",20,{"name":143,"value":17,"label":144,"unit":115,"favourable":100,"score":127,"optimal_max":17,"marginal_max":17},"Tidal Phase","flood",[],{"display_name":147},"Daniel","Queensland","unverified",{"title":151,"description":152,"canonical_url":153,"og_image":154,"structured_data":155,"breadcrumbs":178},"Snorkeling Conditions at Great Detached Reef - How's the Spot","Check snorkeling conditions at Great Detached Reef, Queensland. Good conditions, water 24.8°C, waves 0.12m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fgreat-detached-reef","https:\u002F\u002Fhowsthespot.com\u002Fog-default.png",[156,165],{"@context":157,"@type":158,"name":11,"description":159,"url":153,"geo":160,"address":162},"https:\u002F\u002Fschema.org","Place","Great Detached Reef is a vast, pristine coral complex in the remote northern Great Barrier Reef, sitting atop an ancient submerged fossil mountain range. Unlike the crowded inner reefs, this untouc...",{"@type":161,"latitude":13,"longitude":14},"GeoCoordinates",{"@type":163,"addressRegion":148,"addressCountry":164},"PostalAddress","Australia",{"@context":157,"@type":166,"name":167,"description":152,"url":153,"breadcrumb":168},"WebPage","Snorkeling Conditions at Great Detached Reef",{"@context":157,"@type":169,"itemListElement":170},"BreadcrumbList",[171,175,177],{"@type":172,"position":127,"name":173,"item":174},"ListItem","Home","https:\u002F\u002Fhowsthespot.com",{"@type":172,"position":114,"name":148,"item":176},"https:\u002F\u002Fhowsthespot.com\u002Fexplore?region=queensland",{"@type":172,"position":126,"name":11,"item":153},[179,181,183],{"label":173,"href":180},"\u002F",{"label":148,"href":182},"\u002Fexplore?region=queensland",{"label":11,"href":184},"\u002Fspots\u002Fgreat-detached-reef",1791009156793]