[{"data":1,"prerenderedAt":222},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-blue-holes-dampier-archipelago":9,"spot-blue-holes-dampier-archipelago":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 Blue Holes (Dampier Archipelago) - How's the Spot","Check snorkeling conditions at Blue Holes (Dampier Archipelago), Western Australia. Excellent conditions, water 25.7°C, waves 0.03m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fblue-holes-dampier-archipelago","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_blue-holes-dampier-archipelago_0_28e0df1acd57.jpg",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Blue Holes (Dampier Archipelago)","The Blue Holes are mysterious, deeper depressions within the coral reef systems of the Dampier Archipelago, a 42-island chain off the Pilbara coast near Karratha. These natural sinkholes in the lim...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-20.554322,116.635973,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Western Australia","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Blue Holes (Dampier Archipelago)",{"@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=western-australia",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=western-australia",{"label":18,"href":50},"\u002Fspots\u002Fblue-holes-dampier-archipelago",{"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":145,"area_boundary":113,"routes":113,"created_at":153,"updated_at":154,"today_conditions":155,"today_verdict_view":175,"images":204,"submitted_by":219,"region_name":26,"verification_status":221,"verified_at":113,"disputed":202,"verifier_count":5,"last_verified_display_name":113},"02a0f781-b3f0-4aeb-baf8-6e17ec6671b7","blue-holes-dampier-archipelago","The Blue Holes are mysterious, deeper depressions within the coral reef systems of the Dampier Archipelago, a 42-island chain off the Pilbara coast near Karratha. These natural sinkholes in the limestone reef structure create calm, clear pools that attract a dense concentration of marine life. Surrounded by vibrant coral gardens, the site offers excellent snorkelling visibility during the cooler months. The archipelago sits within Murujuga National Park, home to over 1 million ancient rock petroglyphs. Access is exclusively by boat — either via guided tours from Hampton Harbour or self-guided expeditions — and the snorkelling rewards visitors with encounters with tropical fish, rays, turtles, and from June to October, migrating humpback whales.","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],0.01749069320634139,0.010187609391739063,0.22937269510749572,0.1713691519900965,1.0506435201076243,0.015822418297844924,0.011306567026274309,0.0030035465835141196,0.18610417953872527,0.1424063982834507,0.06700852279957499,0.031091343342797253,0.018734083953827765,0.6105125971652887,0.029014118558981276,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],17.077071580832268,183.93786180443738,171.72302394197968,128.61688538277502,70.19479901272487,56.60293420898285,2.5453254980108966,226.03901073492773,42.41012137389145,160.2879768958594,164.60321409144342,156.4025220937633,7.993881816776111,131.5574394039379,143.46729200227972,"EOT20","1992-01-01T00:00:00Z",[109,114,118,121,124,127,130,133,136,139,142],{"name":110,"description":111,"severity":112,"season_start":113,"season_end":113},"Marine stingers (box jellyfish)","Potentially dangerous jellyfish may be present in warmer months (November to May).","warning",null,{"name":115,"description":116,"severity":117,"season_start":113,"season_end":113},"Outgoing tide currents","Strong tidal flows can develop around island channels and reef passes, especially on outgoing tides.","caution",{"name":119,"description":120,"severity":117,"season_start":113,"season_end":113},"Coral bleaching & sharp coral","Coral bleaching events have affected local reefs; sharp coral can cause cuts. Wear protective footwear.",{"name":122,"description":123,"severity":112,"season_start":113,"season_end":113},"Remote location","Access is by boat only with no immediate medical facilities nearby. Snorkel with a tour or experienced skipper.",{"name":125,"description":126,"severity":112,"season_start":113,"season_end":113},"Strong tidal currents","Tidal flows between islands and around outer reefs can be strong and unpredictable, especially on larger tides.",{"name":128,"description":129,"severity":117,"season_start":113,"season_end":113},"Marine stingers","Box jellyfish and other marine stingers may be present during the warmer months (November to April).",{"name":131,"description":132,"severity":112,"season_start":113,"season_end":113},"Remote island locations","Snorkel sites are remote with no facilities or immediate emergency services on the islands.",{"name":134,"description":135,"severity":117,"season_start":113,"season_end":113},"Coral bleaching events","Recent coral bleaching has affected some reef sites; be mindful of fragile coral ecosystems.",{"name":137,"description":138,"severity":117,"season_start":113,"season_end":113},"Boat traffic","Shipping channels and recreational boat traffic in the archipelago require vigilance when snorkeling near marked channels.",{"name":140,"description":141,"severity":117,"season_start":113,"season_end":113},"Coral and rock cuts","Sharp coral and limestone formations can cause cuts and abrasions; wearing reef shoes is strongly advised.",{"name":143,"description":144,"severity":117,"season_start":113,"season_end":113},"Stinging jellyfish and marine stingers","Box jellyfish and other stingers may be present during the warmer months from October to May.",{"directions":146,"parking":147,"facilities":148,"fees":151,"access_method":152},"The Dampier Archipelago is located off the coast of Dampier, approximately 20 km northwest of Karratha in Western Australia's Pilbara region. Public boat ramps are located at Dampier, Karratha Back Beach, Johns Creek, Point Samson and Cossack. Guided snorkel tours depart from the Hampton Harbour Boat and Sailing Club in Dampier. The islands have no facilities — all water, food and safety gear must be brought.","Ample parking is available at the Hampton Harbour Boat and Sailing Club (for tour guests) and at public boat ramp car parks in Dampier and Karratha.",[149,150],"parking","boat_ramp","No entry fee for the archipelago itself. Guided snorkel tours are approximately $330 per person. Self-guided visitors need their own boat and all supplies.","boat","2026-07-27T02:59:33.697577Z","2026-08-04T05:30:44.786358Z",{"verdict":156,"evaluated_at":157,"models":158},"go","2026-10-03T02:15:26.729233Z",[159,166,171],{"model_name":160,"is_favourable":161,"value":162,"threshold":163,"unit":164,"operator":165},"Wind Speed",true,0.83,10,"kn","lte",{"model_name":167,"is_favourable":161,"value":168,"threshold":169,"unit":170,"operator":165},"Wave Height",0.026,0.5,"m",{"model_name":172,"is_favourable":161,"value":43,"threshold":40,"unit":173,"operator":174},"Visibility","","gte",{"verdict":156,"rating":176,"evaluated_at":157,"generated_at":157,"source":177,"confidence":178,"visibility":181,"parameters":182,"models_passed":203,"models_total":197},"Excellent","precomputed",{"level":179,"value":180},"High",100,{"score":43,"rating":113,"confidence":113},[183,185,191,194,199],{"name":167,"value":184,"label":113,"unit":170,"favourable":161,"score":43,"optimal_max":169,"marginal_max":36},0.026000000000000002,{"name":186,"value":187,"label":113,"unit":188,"favourable":161,"score":43,"optimal_max":189,"marginal_max":190},"Swell Period",2.75,"s",8,12,{"name":160,"value":192,"label":113,"unit":164,"favourable":161,"score":43,"optimal_max":163,"marginal_max":193},0.826132,15,{"name":195,"value":5,"label":113,"unit":196,"favourable":161,"score":43,"optimal_max":197,"marginal_max":198},"Precipitation","mm",5,20,{"name":200,"value":113,"label":201,"unit":173,"favourable":202,"score":36,"optimal_max":113,"marginal_max":113},"Tidal Phase","flood",false,4,[205,212],{"id":206,"image_url":13,"sort_order":5,"is_primary":161,"moderation_status":207,"license":208,"license_url":209,"attribution":210,"author_name":211},"2a0411bc-7722-446e-b9ba-8f620adc726a","approved","CC BY 4.0","https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F","Photo by Derek Hodgson","Derek Hodgson",{"id":213,"image_url":214,"sort_order":36,"is_primary":202,"moderation_status":207,"license":215,"license_url":216,"attribution":217,"author_name":218},"3bc3d676-c15c-4606-bf6a-679f49108914","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_blue-holes-dampier-archipelago_1_cd8a093a3894.jpg","Public domain","https:\u002F\u002Fcreativecommons.org\u002Fpublicdomain\u002Fmark\u002F1.0\u002F","Photo by United Kingdom Hydrographic Office","United Kingdom Hydrographic Office",{"display_name":220},"Daniel","unverified",1791009133001]