[{"data":1,"prerenderedAt":202},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-milln-reef":9,"spot-milln-reef":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 Milln Reef - How's the Spot","Check snorkeling conditions at Milln Reef, Queensland. Excellent conditions, water 24.7°C, waves 0.21m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fmilln-reef","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_milln-reef_0_41fb79524d55.jpg",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Milln Reef","Milln Reef is a spectacular outer Great Barrier Reef formation 56 km off Cairns, prized for its gin-clear waters, soaring coral bommies, and exceptional biodiversity. The reef is anchored by the fa...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-16.771102,146.265,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Queensland","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Milln Reef",{"@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=queensland",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=queensland",{"label":18,"href":50},"\u002Fspots\u002Fmilln-reef",{"id":52,"name":18,"slug":53,"latitude":22,"longitude":23,"description":54,"difficulty":55,"image_url":13,"status":56,"tide_constituents":57,"hazard_entries":108,"access_info_structured":138,"area_boundary":121,"routes":121,"created_at":142,"updated_at":143,"today_conditions":144,"today_verdict_view":164,"images":192,"submitted_by":199,"region_name":26,"verification_status":201,"verified_at":121,"disputed":190,"verifier_count":5,"last_verified_display_name":121},"5729ea72-6d07-489e-856d-4436338aaeaa","milln-reef","Milln Reef is a spectacular outer Great Barrier Reef formation 56 km off Cairns, prized for its gin-clear waters, soaring coral bommies, and exceptional biodiversity. The reef is anchored by the famous Three Sisters — three giant coral pinnacles rising from 33 m to within a metre of the surface — plus Whale Bommie, Petaj Mooring, and Swimming Pools, each offering vibrant coral gardens, gorgonian sea fans, and swim-throughs. Snorkelers can drift over shallow bommie tops alongside green sea turtles, white-tipped reef sharks, fusiliers, and parrotfish. With 90% snorkeling suitability and near-perfect coral health ratings, Milln Reef delivers a world-class reef experience accessible only via day-tour or liveaboard.","intermediate","published",{"name":58,"amplitude":74,"phase":90,"latitude":22,"model":106,"epoch":107},[59,60,61,62,63,64,65,66,67,68,69,70,71,72,73],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[75,76,77,78,79,80,81,82,83,84,85,86,87,88,89],0.02501777844267736,0.01800643166812202,0.30788360495935774,0.08287896348593973,0.5162717637098572,0.002541686249082583,0.010491448352297287,0.007379302476035205,0.17545748565965433,0.15194131408488096,0.0865290318726451,0.02491951133720666,0.005422424084899201,0.2957313460858763,0.032116640937550255,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],320.01827499405164,52.975014502379814,38.37317763479779,298.5714550489828,343.43381830688026,239.15979248085904,10.648075940753598,33.84765122995001,326.8991898798697,12.215241955159193,35.639093197656734,353.0049720839137,323.28690505115304,303.7336392730318,271.5741127656162,"EOT20","1992-01-01T00:00:00Z",[109,114,117,122,126,129,132,135],{"name":110,"description":111,"severity":112,"season_start":36,"season_end":113},"Tidal currents","Tidal currents can run through the channels between bommies, especially at the Three Sisters and Whale Bommie. Strongest during spring tides.","caution",12,{"name":115,"description":116,"severity":112,"season_start":36,"season_end":113},"Boat traffic","Boats and mooring lines at popular dive sites. Snorkelers should stay aware of vessel traffic and mooring pennants near the Three Sisters and Whale Bommie.",{"name":118,"description":119,"severity":120,"season_start":121,"season_end":121},"Marine stingers (box jellyfish \u002F Irukandji)","Stinger season (box jellyfish and Irukandji) in warm coastal waters. Outer reef risk is lower than inshore, but still possible November–May. Tour operators provide stinger suits.","warning",null,{"name":123,"description":124,"severity":120,"season_start":125,"season_end":113},"Stinger season (jellyfish)","Stinging jellyfish (including box jellyfish and Irukandji) are present in warmer months (October to May).",10,{"name":127,"description":128,"severity":112,"season_start":36,"season_end":113},"Sharp coral","Sharp coral bommies and shallow reef edges can cause cuts and scrapes if snorkelers make contact.",{"name":130,"description":131,"severity":112,"season_start":121,"season_end":121},"Shallow Coral Bommies","The Three Sisters bommies rise to just 1 m below the surface. Snorkelers must be cautious to avoid contact with the coral, especially at low tide when the bommies are shallower.",{"name":133,"description":134,"severity":112,"season_start":121,"season_end":121},"Ocean Currents","Seasonal ocean currents can develop around the bommies, particularly during changing tides, which may drift snorkelers away from the mooring area.",{"name":136,"description":137,"severity":112,"season_start":121,"season_end":121},"Marine Stingers","Marine stingers (box jellyfish, Irukandji) may be present in tropical Queensland waters. Tour operators provide stinger suits during the warmer months.",{"directions":139,"parking":140,"facilities":121,"fees":121,"access_method":141},"Milln Reef is located 56 km (35 miles) northeast of Cairns in the Coral Sea. Access is exclusively by commercial tour boat. Day-trip and liveaboard vessels depart from the Cairns Marina (Spence St, Cairns City). The crossing takes approximately 1.5–2 hours.","Paid parking available at the Cairns Marina and nearby public car parks along the Cairns Esplanade \u002F Spence Street precinct. Arrive early as spaces fill quickly during peak season (May–October). Some tour operators offer shuttle services from Cairns hotels; check with your operator in advance.","snorkel_tour","2026-07-27T02:54:16.172552Z","2026-08-04T05:32:31.002516Z",{"verdict":145,"evaluated_at":146,"models":147},"go","2026-10-03T02:17:04.033898Z",[148,154,159],{"model_name":149,"is_favourable":150,"value":151,"threshold":125,"unit":152,"operator":153},"Wind Speed",true,8.41,"kn","lte",{"model_name":155,"is_favourable":150,"value":156,"threshold":157,"unit":158,"operator":153},"Wave Height",0.21,0.5,"m",{"model_name":160,"is_favourable":150,"value":161,"threshold":40,"unit":162,"operator":163},"Visibility",2.31,"","gte",{"verdict":145,"rating":165,"evaluated_at":146,"generated_at":146,"source":166,"confidence":167,"visibility":170,"parameters":171,"models_passed":191,"models_total":185},"Excellent","precomputed",{"level":168,"value":169},"High",100,{"score":161,"rating":121,"confidence":121},[172,173,178,181,187],{"name":155,"value":156,"label":121,"unit":158,"favourable":150,"score":43,"optimal_max":157,"marginal_max":36},{"name":174,"value":175,"label":121,"unit":176,"favourable":150,"score":43,"optimal_max":177,"marginal_max":113},"Swell Period",6.75,"s",8,{"name":149,"value":179,"label":121,"unit":152,"favourable":150,"score":43,"optimal_max":125,"marginal_max":180},8.407108000000001,15,{"name":182,"value":183,"label":121,"unit":184,"favourable":150,"score":43,"optimal_max":185,"marginal_max":186},"Precipitation",2.8,"mm",5,20,{"name":188,"value":121,"label":189,"unit":162,"favourable":190,"score":36,"optimal_max":121,"marginal_max":121},"Tidal Phase","flood",false,4,[193,196],{"id":194,"image_url":13,"sort_order":5,"is_primary":150,"moderation_status":195,"license":121,"license_url":121,"attribution":121,"author_name":121},"712a168c-9a5b-4483-9b02-ce30e6d764eb","approved",{"id":197,"image_url":198,"sort_order":36,"is_primary":190,"moderation_status":195,"license":121,"license_url":121,"attribution":121,"author_name":121},"0d2b2b23-3c2c-4817-a821-c51b82d0e281","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_milln-reef_1_8e2556a6a8c2.jpg",{"display_name":200},"Daniel","unverified",1791009174987]