[{"data":1,"prerenderedAt":188},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-vernon-islands-potinga-islands-blue-holes-snorkel":9,"spot-vernon-islands-potinga-islands-blue-holes-snorkel":51},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-02T06:59:37.379659Z",{"title":10,"description":11,"canonical_url":12,"og_image":13,"structured_data":14,"breadcrumbs":44},"Snorkeling Conditions at Vernon Islands (Potinga Islands) - Blue Holes Snorkel - How's the Spot","Check snorkeling conditions at Vernon Islands (Potinga Islands) - Blue Holes Snorkel, Northern Territory. Good conditions, water 28.9°C, waves 0.14m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fvernon-islands-potinga-islands-blue-holes-snorkel","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","Vernon Islands (Potinga Islands) - Blue Holes Snorkel","The Vernon Islands (Potinga Islands) in Clarence Strait, 55 km north-east of Darwin, are renowned for their spectacular 'Blue Holes' — deep limestone sinkholes that puncture the surrounding reef fl...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-12.065786,131.096299,{"@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 Vernon Islands (Potinga Islands) - Blue Holes Snorkel",{"@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\u002Fvernon-islands-potinga-islands-blue-holes-snorkel",{"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":130,"area_boundary":56,"routes":56,"created_at":135,"updated_at":136,"today_conditions":137,"today_verdict_view":158,"images":184,"submitted_by":185,"region_name":26,"verification_status":187,"verified_at":56,"disputed":154,"verifier_count":5,"last_verified_display_name":56},"f5f7ed23-ba13-4b36-9592-a38f222abc5a","vernon-islands-potinga-islands-blue-holes-snorkel","The Vernon Islands (Potinga Islands) in Clarence Strait, 55 km north-east of Darwin, are renowned for their spectacular 'Blue Holes' — deep limestone sinkholes that puncture the surrounding reef flats. These natural plunge pools, formed by erosion during past ice ages, offer crystal-clear waters teeming with colourful fish, vase corals, staghorn corals, and giant leather corals. The largest Blue Hole on the north side of North West Vernon Island is the prime snorkel site, accessible only by boat. The islands sit within the Vernon Islands Conservation Reserve and are part of the traditional saltwater country of the Mantiyupwi clan, with permanently clear waters that rival inshore coral atolls of the Great Barrier Reef.","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],0.023488743854228458,0.03215144729651132,0.5163834609570125,0.1834839660938009,1.5521163155669253,0.08256862098772905,0.016005403427576927,0.009743986650070006,0.2939153407984736,0.2839293927597113,0.12532719663533715,0.06977244621193644,0.029876370980147667,0.6717374750703663,0.035389215638411874,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],213.22392451656341,246.93242656960516,207.2247622542059,306.55615397092066,264.79801492286265,68.99317482594668,14.13400422127645,324.77619117664875,238.3016650476319,198.87738709595422,207.84538838249463,190.18138459514682,9.415161483139254,310.84589316192665,314.9304912660658,"EOT20","1992-01-01T00:00:00Z",[110,114,117,121,126],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Blue-ringed Octopus","Blue-ringed octopus (Hapalochlaena sp.) are commonly found in shallow rubble and reef flats around the blue holes. Their venom is highly toxic — avoid touching or stepping on them.","warning",{"name":115,"description":116,"severity":113,"season_start":56,"season_end":56},"Outgoing Tide Current","Outgoing tide currents can be strong as water drains from the reef flats, making it difficult to swim back to the boat or safe entry point.",{"name":118,"description":119,"severity":120,"season_start":56,"season_end":56},"Saltwater Crocodile","Saltwater crocodiles are present in the Clarence Strait and surrounding waters. Always check local advice before entering the water.","danger",{"name":122,"description":123,"severity":113,"season_start":124,"season_end":125},"Box Jellyfish (Stingers)","Box jellyfish (stingers) may be present in tropical Northern Territory waters, typically during the wet season (October to May).",10,12,{"name":127,"description":128,"severity":129,"season_start":56,"season_end":56},"Sharp Coral Rubble","Sharp coral rubble and exposed limestone rock on the reef flats can cause cuts and scrapes. Sturdy reef shoes or booties recommended.","caution",{"directions":131,"parking":132,"facilities":56,"fees":133,"access_method":134},"The Vernon Islands lie about 55 km north-east of Darwin in Clarence Strait. Access is by boat only — typically via guided tour operators such as Sea Darwin, launching from Darwin Harbour or Buffalo Creek. Private boat access is possible from Leeders Creek or Buffalo Creek with a 5 m boat. A permit is required to go ashore (Tiwi Aboriginal land).","Parking available at boat ramp car parks at Buffalo Creek or Leeders Creek (free public car parks).","Guided tours available from Darwin (fees vary); no public ferry service. A permit is needed to land on the islands.","snorkel_tour","2026-07-27T02:56:21.279778Z","2026-08-04T05:37:15.121125Z",{"verdict":138,"evaluated_at":139,"models":140},"go","2026-10-02T02:24:58.347060Z",[141,147,152],{"model_name":142,"is_favourable":143,"value":144,"threshold":124,"unit":145,"operator":146},"Wind Speed",true,1.25,"kn","lte",{"model_name":148,"is_favourable":143,"value":149,"threshold":150,"unit":151,"operator":146},"Wave Height",0.138,0.5,"m",{"model_name":153,"is_favourable":154,"value":155,"threshold":40,"unit":156,"operator":157},"Visibility",false,0.99,"","gte",{"verdict":138,"rating":159,"evaluated_at":139,"generated_at":139,"source":160,"confidence":161,"visibility":164,"parameters":165,"models_passed":40,"models_total":179},"Good","precomputed",{"level":162,"value":163},"High",92.5,{"score":155,"rating":56,"confidence":56},[166,168,173,176,181],{"name":148,"value":167,"label":56,"unit":151,"favourable":143,"score":43,"optimal_max":150,"marginal_max":36},0.13800517214814814,{"name":169,"value":170,"label":56,"unit":171,"favourable":154,"score":36,"optimal_max":172,"marginal_max":125},"Swell Period",9.45,"s",8,{"name":142,"value":174,"label":56,"unit":145,"favourable":143,"score":43,"optimal_max":124,"marginal_max":175},1.24988912,15,{"name":177,"value":125,"label":56,"unit":178,"favourable":154,"score":36,"optimal_max":179,"marginal_max":180},"Precipitation","mm",5,20,{"name":182,"value":56,"label":183,"unit":156,"favourable":154,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","ebb",[],{"display_name":186},"Daniel","unverified",1790924520089]