[{"data":1,"prerenderedAt":183},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-capricornia-cays-erskine-island-masthead-island-etc":9,"spot-capricornia-cays-erskine-island-masthead-island-etc":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 Capricornia Cays (Erskine Island, Masthead Island, etc.) - How's the Spot","Check snorkeling conditions at Capricornia Cays (Erskine Island, Masthead Island, etc.), Queensland. Excellent conditions, water 22.8°C, waves 0.05m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fcapricornia-cays-erskine-island-masthead-island-etc","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","Capricornia Cays (Erskine Island, Masthead Island, etc.)","The Capricornia Cays National Park protects a cluster of remote, vegetated coral cays at the southern end of the Great Barrier Reef, including Erskine Island and Masthead Island. These uninhabited...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-23.538653,151.726904,{"@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 Capricornia Cays (Erskine Island, Masthead Island, etc.)",{"@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\u002Fcapricornia-cays-erskine-island-masthead-island-etc",{"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":126,"area_boundary":56,"routes":56,"created_at":130,"updated_at":131,"today_conditions":132,"today_verdict_view":151,"images":179,"submitted_by":180,"region_name":26,"verification_status":182,"verified_at":56,"disputed":177,"verifier_count":5,"last_verified_display_name":56},"ba4a997d-fc3e-4861-8640-813f3c39b803","capricornia-cays-erskine-island-masthead-island-etc","The Capricornia Cays National Park protects a cluster of remote, vegetated coral cays at the southern end of the Great Barrier Reef, including Erskine Island and Masthead Island. These uninhabited islands are ringed by extensive reef flats that gently slope into sandy gutters, offering uncrowded snorkeling over acropora gardens and bommies. The isolation results in exceptional water clarity, abundant fish life, and a wilderness feel rare on the GBR. Seabird colonies, pisonia forests, and she-oak groves frame the dazzling white beaches above the waterline, while below the reef teems with coral trout, parrotfish, and the occasional turtle. Due to restricted access zones protecting nesting seabirds and turtles, visitors must check current park notices before exploring.","intermediate",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],0.03226779190975547,0.015872205838247687,0.2575687023590528,0.09819974311251244,0.9199667249323228,0.007168831495819053,0.004380218155541322,0.0034283319242526342,0.21843682821709132,0.13557570006857025,0.07228262500383735,0.02742832599419014,0.008235846739024985,0.3367617924813212,0.019836879497937554,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],305.682271493664,25.529814986456284,5.885324379131577,316.02884249203674,321.79637688508035,241.45246242264494,11.790571471336646,70.92292066260666,313.85242675657236,337.46058664296805,1.8378772939995682,316.46829412321387,324.30953773186314,320.32643251376567,308.15443746365116,"EOT20","1992-01-01T00:00:00Z",[110,114,120,123],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Tidal currents along reef edges","Strong currents can run along the reef edges, especially on the exposed sides of the cays. Snorkelers should be confident in current and drift snorkeling.","caution",{"name":115,"description":116,"severity":117,"season_start":118,"season_end":119},"Marine stingers","Marine stingers (box jellyfish and Irukandji) are present in these waters during the warmer months.","warning",5,10,{"name":121,"description":122,"severity":113,"season_start":56,"season_end":56},"Shallow reef flats at low tide","The reef flats are very shallow at low tide, exposing sharp coral. Snorkelers must avoid walking on coral and time their entry for rising tide.",{"name":124,"description":125,"severity":117,"season_start":56,"season_end":56},"Remote location — no medical facilities","Remote location with no medical facilities on the cays. The nearest hospital is in Gladstone, accessed by boat or helicopter evacuation.",{"directions":127,"parking":128,"facilities":56,"fees":56,"access_method":129},"The Capricornia Cays lie approximately 70–80 km off the coast of Gladstone, Queensland. Access is via private vessel or chartered tour from Gladstone or 1770. No commercial ferry services run to these remote cays; a private boat or a liveaboard\u002Fspecialist snorkel tour is essential.","No parking available at the cays. Vehicles can be left at Gladstone or 1770 boat ramps\u002Fmarinas (fees may apply).","snorkel_tour","2026-07-27T02:54:00.078294Z","2026-08-04T05:36:16.070412Z",{"verdict":133,"evaluated_at":134,"models":135},"go","2026-10-03T02:19:13.907009Z",[136,142,147],{"model_name":137,"is_favourable":138,"value":139,"threshold":119,"unit":140,"operator":141},"Wind Speed",true,1.03,"kn","lte",{"model_name":143,"is_favourable":138,"value":144,"threshold":145,"unit":146,"operator":141},"Wave Height",0.052,0.5,"m",{"model_name":148,"is_favourable":138,"value":43,"threshold":40,"unit":149,"operator":150},"Visibility","","gte",{"verdict":133,"rating":152,"evaluated_at":134,"generated_at":134,"source":153,"confidence":154,"visibility":157,"parameters":158,"models_passed":178,"models_total":118},"Excellent","precomputed",{"level":155,"value":156},"High",100,{"score":43,"rating":56,"confidence":56},[159,161,167,170,174],{"name":143,"value":160,"label":56,"unit":146,"favourable":138,"score":43,"optimal_max":145,"marginal_max":36},0.052000000000000005,{"name":162,"value":163,"label":56,"unit":164,"favourable":138,"score":43,"optimal_max":165,"marginal_max":166},"Swell Period",5.65,"s",8,12,{"name":137,"value":168,"label":56,"unit":140,"favourable":138,"score":43,"optimal_max":119,"marginal_max":169},1.03217904,15,{"name":171,"value":5,"label":56,"unit":172,"favourable":138,"score":43,"optimal_max":118,"marginal_max":173},"Precipitation","mm",20,{"name":175,"value":56,"label":176,"unit":149,"favourable":177,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",false,4,[],{"display_name":181},"Daniel","unverified",1791009139066]