[{"data":1,"prerenderedAt":203},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-darwin-harbour-wrecks-ss-meigs-song-saigon-mauna-loa":9,"spot-darwin-harbour-wrecks-ss-meigs-song-saigon-mauna-loa":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 Darwin Harbour wrecks (SS Meigs, Song Saigon, Mauna Loa) - How's the Spot","Check snorkeling conditions at Darwin Harbour wrecks (SS Meigs, Song Saigon, Mauna Loa), Northern Territory. Good conditions, water 29.7°C, waves 0.02m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fdarwin-harbour-wrecks-ss-meigs-song-saigon-mauna-loa","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","Darwin Harbour wrecks (SS Meigs, Song Saigon, Mauna Loa)","A fleet of WWII shipwrecks lies scattered across the floor of Darwin Harbour, sunk during the devastating Japanese air raids of 19 February 1942 — the largest single attack on Australian soil. The...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-12.463733,130.844445,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Northern Territory","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Darwin Harbour wrecks (SS Meigs, Song Saigon, Mauna Loa)",{"@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=northern-territory",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=northern-territory",{"label":18,"href":50},"\u002Fspots\u002Fdarwin-harbour-wrecks-ss-meigs-song-saigon-mauna-loa",{"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":145,"area_boundary":56,"routes":56,"created_at":150,"updated_at":151,"today_conditions":152,"today_verdict_view":173,"images":199,"submitted_by":200,"region_name":26,"verification_status":202,"verified_at":56,"disputed":169,"verifier_count":5,"last_verified_display_name":56},"be269120-9c73-48b7-a95e-0b56e65b6cf4","darwin-harbour-wrecks-ss-meigs-song-saigon-mauna-loa","A fleet of WWII shipwrecks lies scattered across the floor of Darwin Harbour, sunk during the devastating Japanese air raids of 19 February 1942 — the largest single attack on Australian soil. The three wrecks most frequently dived together are the USAT Meigs (a 12,500-ton US Army transport sitting upright at 28 m, the largest casualty of the raid), the SS Mauna Loa (a US merchant cargo ship at 18–22 m, hit during the first wave), and the Song Saigon (a Vietnamese refugee vessel scuttled later). These wrecks form a world-class underwater museum, encrusted with soft corals, sponges, and gorgonians, and are accessed only by boat with tight slack-water windows due to Darwin's massive 8-metre tidal range. Visibility ranges 3–12 m; water temperature 23–30°C. All wrecks are protected under the Historic Shipwrecks Act 1976.","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],0.026444211959682978,0.040266228460664646,0.5790623102781534,0.25259798786908577,1.6594250641602313,0.0749506905848954,0.01793954358828584,0.006883752889820902,0.31567500062178594,0.30225705458599295,0.16115847827181792,0.07361176258285632,0.03723585748071161,0.8911810813141829,0.04860370609938519,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],199.06196216668297,239.49138167492276,202.42025783261465,291.6577283172944,246.96997089897354,91.65836836467815,13.246117100060955,331.3315188408707,227.4774360021117,190.99486225304156,206.29895877648647,177.95534041325715,12.458843199954515,294.7665709974228,295.86337760264786,"EOT20","1992-01-01T00:00:00Z",[110,114,117,121,125,128,131,134,137,142],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Strong tidal currents","Tidal range exceeds 8 metres, generating strong currents outside brief slack-water windows (30–60 min). Dives are tide-dependent and must be meticulously planned.","warning",{"name":115,"description":116,"severity":113,"season_start":56,"season_end":56},"Box jellyfish (Oct–May)","Box jellyfish (Chironex fleckeri) are present in Darwin Harbour waters from October through May.",{"name":118,"description":119,"severity":120,"season_start":56,"season_end":56},"Saltwater crocodiles","Saltwater crocodiles inhabit Darwin Harbour year-round. Surface support and constant vigilance are required.","danger",{"name":122,"description":123,"severity":124,"season_start":56,"season_end":56},"Variable \u002F low visibility","Visibility ranges 3–12 m typically, dropping sharply on outgoing tide and after wet-season runoff (November–April).","caution",{"name":126,"description":127,"severity":124,"season_start":56,"season_end":56},"War grave restrictions on some sites","Some wrecks (e.g. USS Peary) are designated war graves with strict no-dive restrictions. USAT Meigs, Mauna Loa, and Song Saigon are dive-able but require advanced certification.",{"name":129,"description":130,"severity":120,"season_start":56,"season_end":56},"Saltwater crocodile risk","Saltwater crocodiles (Crocodylus porosus) inhabit Darwin Harbour year-round. Surface support and constant vigilance are essential.",{"name":132,"description":133,"severity":124,"season_start":56,"season_end":56},"Variable\u002Fpoor visibility","Visibility can drop to 2–3m depending on tide, weather, and wet-season runoff. Typically 3–12m.",{"name":135,"description":136,"severity":124,"season_start":56,"season_end":56},"Protected heritage sites","All wrecks are protected under the Historic Shipwrecks Act 1976; some are war graves. Removing artefacts or interfering with structure is illegal.",{"name":138,"description":139,"severity":113,"season_start":140,"season_end":141},"Box jellyfish (stinger season)","Box jellyfish (Chironex fleckeri) are present in tropical waters of the Top End from October through May. Stings can be life-threatening.",5,10,{"name":143,"description":144,"severity":113,"season_start":56,"season_end":56},"Deep water (18-28 m)","Water depth ranges from 18-28 m. Wreck penetration requires advanced certification. Decompression obligations must be managed carefully.",{"directions":146,"parking":147,"facilities":56,"fees":148,"access_method":149},"Boat access only from Cullen Bay Marina, Darwin. Outer harbour wrecks (Meigs, Mauna Loa, Song Saigon) are a 30-40 minute transit from the marina. Several charter operators in Darwin run dive trips to the wrecks, including Dive Darwin and Sea Darwin. All sites are within Darwin Harbour, NT.","Parking available at Cullen Bay Marina carpark (paid parking, limited spaces). Street parking may also be available nearby in Darwin city centre. Some operators offer pickup from Darwin accommodation.","Dive charter fees vary by operator — typically $150-$250 per person for a 2-tank trip including gear. No entry fee to the harbour itself.","boat","2026-07-27T02:56:20.777234Z","2026-08-04T05:36:16.070448Z",{"verdict":153,"evaluated_at":154,"models":155},"go","2026-10-03T02:19:19.503672Z",[156,162,167],{"model_name":157,"is_favourable":158,"value":159,"threshold":141,"unit":160,"operator":161},"Wind Speed",true,1.32,"kn","lte",{"model_name":163,"is_favourable":158,"value":164,"threshold":165,"unit":166,"operator":161},"Wave Height",0.02,0.5,"m",{"model_name":168,"is_favourable":169,"value":170,"threshold":40,"unit":171,"operator":172},"Visibility",false,0.99,"","gte",{"verdict":153,"rating":174,"evaluated_at":154,"generated_at":154,"source":175,"confidence":176,"visibility":179,"parameters":180,"models_passed":43,"models_total":140},"Good","precomputed",{"level":177,"value":178},"High",100,{"score":170,"rating":56,"confidence":56},[181,182,188,191,196],{"name":163,"value":164,"label":56,"unit":166,"favourable":158,"score":43,"optimal_max":165,"marginal_max":36},{"name":183,"value":184,"label":56,"unit":185,"favourable":158,"score":43,"optimal_max":186,"marginal_max":187},"Swell Period",5.7,"s",8,12,{"name":157,"value":189,"label":56,"unit":160,"favourable":158,"score":43,"optimal_max":141,"marginal_max":190},1.3218112000000002,15,{"name":192,"value":193,"label":56,"unit":194,"favourable":169,"score":36,"optimal_max":140,"marginal_max":195},"Precipitation",10.2,"mm",20,{"name":197,"value":56,"label":198,"unit":171,"favourable":169,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","ebb",[],{"display_name":201},"Daniel","unverified",1791009146576]