[{"data":1,"prerenderedAt":185},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-henderson-rock":9,"spot-henderson-rock":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 Henderson Rock - How's the Spot","Check snorkeling conditions at Henderson Rock, Queensland. Excellent conditions, water 21.9°C, waves 0.30m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fhenderson-rock","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","Henderson Rock","Henderson Rock is a rocky reef dive site on the eastern side of Moreton Island, accessible only by boat from Brisbane or the Gold Coast. Known for deep ledges, overhangs, and swim-throughs, this le...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-27.025,153.381,{"@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 Henderson Rock",{"@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\u002Fhenderson-rock",{"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":121,"area_boundary":56,"routes":56,"created_at":129,"updated_at":130,"today_conditions":131,"today_verdict_view":152,"images":181,"submitted_by":182,"region_name":26,"verification_status":184,"verified_at":56,"disputed":179,"verifier_count":5,"last_verified_display_name":56},"00f9234f-f6f2-4c71-8f3c-d2fe88f3b001","henderson-rock","Henderson Rock is a rocky reef dive site on the eastern side of Moreton Island, accessible only by boat from Brisbane or the Gold Coast. Known for deep ledges, overhangs, and swim-throughs, this less-frequented spot offers a wild underwater landscape shaped by ocean swells. Snorkelers can drift over coral-encrusted boulders while spotting rays, turtles, and reef fish in the clear subtropical waters off South East Queensland.","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],0.01753834987093612,0.01112318582537364,0.1977804533861312,0.04766054632194287,0.5669393372781489,0.00560404126761965,0.0024537797116221997,0.0023429933103121903,0.1210244271194703,0.10375674991171284,0.05805545485705015,0.022346889159834522,0.007895544212309315,0.17121109945919907,0.012727417775369981,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],290.537005201237,7.264373337709801,358.08203536017123,296.05357259870743,301.22831634133235,244.14221948257153,84.87845886152132,306.15929137318244,291.2370778496813,330.77240028282347,352.047549253214,316.5657863031273,306.5590939805354,308.44663479059636,245.74241421710644,"EOT20","1992-01-01T00:00:00Z",[110,114,118],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Strong ocean currents","Exposed eastern side of Moreton Island can have significant tidal and swell-driven currents requiring good fitness.","warning",{"name":115,"description":116,"severity":117,"season_start":56,"season_end":56},"Boat traffic","Access is by boat only; snorkelers must be vigilant of dive vessels and traffic in the area.","caution",{"name":119,"description":120,"severity":113,"season_start":56,"season_end":56},"Deep drop-offs","Ledges and overhangs drop to significant depths — not suitable for weak swimmers or inexperienced snorkelers.",{"directions":122,"parking":123,"facilities":124,"fees":127,"access_method":128},"Henderson Rock is located off the eastern side of Moreton Island, roughly 40 km northeast of Brisbane. Access is by private boat or organised snorkel\u002Fdive charter from Brisbane, Scarborough, or the Gold Coast marinas.","Parking available at departure marinas (e.g. Scarborough Marina or Gold Coast marinas) — check with your charter operator.",[125,126],"toilets","parking","No direct entry fee; charter fees vary by operator (typically $100–$180 per person for a half-day trip).","boat","2026-07-27T02:56:28.687779Z","2026-08-04T05:30:44.786342Z",{"verdict":132,"evaluated_at":133,"models":134},"go","2026-10-03T02:21:14.682435Z",[135,142,147],{"model_name":136,"is_favourable":137,"value":138,"threshold":139,"unit":140,"operator":141},"Wind Speed",true,2.98,10,"kn","lte",{"model_name":143,"is_favourable":137,"value":144,"threshold":145,"unit":146,"operator":141},"Wave Height",0.3,0.5,"m",{"model_name":148,"is_favourable":137,"value":149,"threshold":40,"unit":150,"operator":151},"Visibility",2.84,"","gte",{"verdict":132,"rating":153,"evaluated_at":133,"generated_at":133,"source":154,"confidence":155,"visibility":158,"parameters":159,"models_passed":180,"models_total":174},"Excellent","precomputed",{"level":156,"value":157},"High",100,{"score":149,"rating":56,"confidence":56},[160,162,168,171,176],{"name":143,"value":161,"label":56,"unit":146,"favourable":137,"score":43,"optimal_max":145,"marginal_max":36},0.30006226903264743,{"name":163,"value":164,"label":56,"unit":165,"favourable":137,"score":43,"optimal_max":166,"marginal_max":167},"Swell Period",4.75,"s",8,12,{"name":136,"value":169,"label":56,"unit":140,"favourable":137,"score":43,"optimal_max":139,"marginal_max":170},2.979866398792811,15,{"name":172,"value":5,"label":56,"unit":173,"favourable":137,"score":43,"optimal_max":174,"marginal_max":175},"Precipitation","mm",5,20,{"name":177,"value":56,"label":178,"unit":150,"favourable":179,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",false,4,[],{"display_name":183},"Daniel","unverified",1791009159742]