[{"data":1,"prerenderedAt":181},["ShallowReactive",2],{"leaderboard-total":3,"spot-helm-s-deep":9,"spot-seo-helm-s-deep":146},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-03T06:32:05.526386Z",{"id":10,"name":11,"slug":12,"latitude":13,"longitude":14,"description":15,"difficulty":16,"image_url":17,"status":18,"tide_constituents":19,"hazard_entries":70,"access_info_structured":82,"area_boundary":17,"routes":17,"created_at":87,"updated_at":88,"today_conditions":89,"today_verdict_view":112,"images":141,"submitted_by":142,"region_name":144,"verification_status":145,"verified_at":17,"disputed":107,"verifier_count":5,"last_verified_display_name":17},"871a0ac4-f40f-42b4-8a4c-95b8bdec3335","Helm's Deep","helm-s-deep",-16.250239,145.320634,"Helm's Deep is a dramatic outer Great Barrier Reef dive and snorkel site off the coast of Cairns, Queensland. Named for the deep, canyon-like coral formations that plunge between towering bommies, this site offers crystal-clear waters and vibrant coral gardens. Swimmers explore a maze of gullies and overhangs teeming with marine life, where the reef wall drops away into the deep blue. The strong currents that sweep through the channels bring nutrient-rich water, making it a hotspot for pelagic visitors and schooling fish. This is a true outer-reef adventure for those seeking wild, intact coral ecosystems.","intermediate",null,"published",{"name":20,"amplitude":36,"phase":52,"latitude":13,"model":68,"epoch":69},[21,22,23,24,25,26,27,28,29,30,31,32,33,34,35],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[37,38,39,40,41,42,43,44,45,46,47,48,49,50,51],0.028063963646090453,0.02306626698935355,0.31211167093610054,0.09784965388023448,0.5452642395764483,0.0028570888515189134,0.010064787979032867,0.011022772649730936,0.18635369970374144,0.14842385489307353,0.09143329093583769,0.025351461864862725,0.014359950088228116,0.32992791606327754,0.023495836543780565,[53,54,55,56,57,58,59,60,61,62,63,64,65,66,67],324.8110734442317,50.315883530551616,41.42724576093155,300.4594332490388,345.62127624812035,197.2380287902136,10.936001966992052,45.84010995036517,329.8274215002556,10.914450478919663,35.829987418303006,359.00546989537355,356.4123469010448,305.1305344630195,291.2428358971614,"EOT20","1992-01-01T00:00:00Z",[71,75,79],{"name":72,"description":73,"severity":74,"season_start":17,"season_end":17},"Tidal currents","Strong tidal currents can funnel through the canyon-like reef channels, requiring competent swimming ability.","warning",{"name":76,"description":77,"severity":78,"season_start":17,"season_end":17},"Open ocean swell","Outer reef exposure with no shelter; conditions can change rapidly with wind and swell.","caution",{"name":80,"description":81,"severity":78,"season_start":17,"season_end":17},"Vessel traffic","Boat traffic from multiple tour operators visiting the same reef moorings.",{"directions":83,"parking":84,"facilities":17,"fees":85,"access_method":86},"Helm's Deep is a named dive\u002Fsnorkel site on the outer Great Barrier Reef, accessible only by boat from Cairns or Port Douglas. Tour operators depart from Cairns Marina daily, with a 1–2 hour boat ride to the outer reef.","Paid parking available at Cairns Marina and public car parks near the Reef Fleet Terminal.","Full-day reef tours from Cairns range from $200–$350 AUD per adult, including equipment, lunch, and guided snorkeling.","snorkel_tour","2026-07-27T02:56:39.500327Z","2026-08-04T05:34:24.990730Z",{"verdict":90,"evaluated_at":91,"models":92},"go","2026-10-03T02:18:05.445602Z",[93,100,105],{"model_name":94,"is_favourable":95,"value":96,"threshold":97,"unit":98,"operator":99},"Wind Speed",true,6.02,10,"kn","lte",{"model_name":101,"is_favourable":95,"value":102,"threshold":103,"unit":104,"operator":99},"Wave Height",0.14,0.5,"m",{"model_name":106,"is_favourable":107,"value":108,"threshold":109,"unit":110,"operator":111},"Visibility",false,0.99,2,"","gte",{"verdict":90,"rating":113,"evaluated_at":91,"generated_at":91,"source":114,"confidence":115,"visibility":118,"parameters":119,"models_passed":121,"models_total":136},"Good","precomputed",{"level":116,"value":117},"High",100,{"score":108,"rating":17,"confidence":17},[120,123,129,132,138],{"name":101,"value":102,"label":17,"unit":104,"favourable":95,"score":121,"optimal_max":103,"marginal_max":122},3,1,{"name":124,"value":125,"label":17,"unit":126,"favourable":95,"score":121,"optimal_max":127,"marginal_max":128},"Swell Period",4,"s",8,12,{"name":94,"value":130,"label":17,"unit":98,"favourable":95,"score":121,"optimal_max":97,"marginal_max":131},6.0161848,15,{"name":133,"value":134,"label":17,"unit":135,"favourable":107,"score":122,"optimal_max":136,"marginal_max":137},"Precipitation",14.3,"mm",5,20,{"name":139,"value":17,"label":140,"unit":110,"favourable":107,"score":122,"optimal_max":17,"marginal_max":17},"Tidal Phase","flood",[],{"display_name":143},"Daniel","Queensland","unverified",{"title":147,"description":148,"canonical_url":149,"og_image":150,"structured_data":151,"breadcrumbs":174},"Snorkeling Conditions at Helm's Deep - How's the Spot","Check snorkeling conditions at Helm's Deep, Queensland. 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