[{"data":1,"prerenderedAt":199},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-the-arches-marine-sanctuary":9,"spot-the-arches-marine-sanctuary":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 The Arches Marine Sanctuary - How's the Spot","Check snorkeling conditions at The Arches Marine Sanctuary, Victoria. Hazardous conditions, water 14.3°C, waves 1.54m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fthe-arches-marine-sanctuary","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_the-arches-marine-sanctuary_0_b0f874ae4833.jpg",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","The Arches Marine Sanctuary","The Arches Marine Sanctuary lies 700 metres offshore from Port Campbell on Victoria's Shipwreck Coast, a 48-hectare underwater wonderland of towering dune limestone arches, canyons, caverns, ledges...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-38.63275,142.9995,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Victoria","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at The Arches Marine Sanctuary",{"@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=victoria",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=victoria",{"label":18,"href":50},"\u002Fspots\u002Fthe-arches-marine-sanctuary",{"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":132,"area_boundary":118,"routes":118,"created_at":140,"updated_at":141,"today_conditions":142,"today_verdict_view":162,"images":189,"submitted_by":196,"region_name":26,"verification_status":198,"verified_at":118,"disputed":148,"verifier_count":5,"last_verified_display_name":118},"c5b5a54c-c924-47ac-b184-461c25924735","the-arches-marine-sanctuary","The Arches Marine Sanctuary lies 700 metres offshore from Port Campbell on Victoria's Shipwreck Coast, a 48-hectare underwater wonderland of towering dune limestone arches, canyons, caverns, ledges and vertical sinkholes in 19–25 metres of water. High-energy Southern Ocean swells have sculpted this dramatic seascape, where the upper reef is cloaked in golden kelp (Ecklonia radiata) while the shadowy undersides of the arches burst with vibrant gorgonian sea-fans, lace corals, sponges, hydroids, and bryozoans — animals typical of deeper Bass Strait waters. This premier dive and advanced snorkel site is home to Port Jackson Sharks sleeping under ledges, schools of Bluethroat Wrasse, Barber Perch, Dusky Morwong, and visiting Australian Fur Seals.","advanced","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],0.0034763066586559243,0.011686758425946474,0.17659117418345452,0.03958238744437666,0.15335778325943852,0.00929687708336111,0.004933528765744774,0.006597245577164875,0.022111036228252997,0.12880560316633427,0.054758101606194536,0.0299008872667332,0.015749819310141213,0.14775488819320273,0.012590668241771548,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],211.11782252895432,279.91340802138404,257.6375161048537,119.77117145869721,25.18556497254283,104.20554491340033,168.91392817771975,246.7436421547244,298.7812900000446,238.8659182576344,249.83804966191525,222.7937488680774,14.864225405955464,115.05547825287232,125.61091910274786,"EOT20","1992-01-01T00:00:00Z",[109,115,119,125,129],{"name":110,"description":111,"severity":112,"season_start":113,"season_end":114},"Strong Ocean Swells","The site is exposed to prevailing south-west winds and swells from the Southern Ocean, creating high-energy wave conditions year-round.","warning",6,8,{"name":116,"description":117,"severity":112,"season_start":118,"season_end":118},"Strong Currents","Powerful tidal and ocean currents can sweep through the reef channels and arches, especially during changing tides.",null,{"name":120,"description":121,"severity":122,"season_start":123,"season_end":124},"Cold Water Temperatures","Southern Ocean waters are cold year-round (typically 12–17°C), increasing the risk of hypothermia without proper exposure protection.","caution",5,10,{"name":126,"description":127,"severity":128,"season_start":118,"season_end":118},"Depth & Decompression Risk","Snorkel and dive sites range from 19–25 metres; deep freediving or unplanned descents carry serious decompression and blackout risks.","danger",{"name":130,"description":131,"severity":112,"season_start":118,"season_end":118},"Remote Offshore Access","The sanctuary is 700 m offshore with no direct shore entry; access is by boat or licensed tour only, and weather conditions can change rapidly.",{"directions":133,"parking":134,"facilities":135,"fees":138,"access_method":139},"The Arches Marine Sanctuary is located approximately 700 m offshore from Port Campbell, about 200 km west of Melbourne via the Princes Highway and Great Ocean Road. Most visitors access the site via licensed dive\u002Fsnorkel tour operators departing from Port Campbell. Private boat access is possible using the Port Campbell Jetty Crane (restricted to permit holders — call Parks Victoria 13 1963). The nearest public boat ramp is at Port Campbell.","Parking is available at the Port Campbell foreshore and near the jetty area. No dedicated parking at the sanctuary itself as it is offshore.",[136,137],"parking","toilets","No entry fee for the marine sanctuary itself. Licensed tour operators charge for guided trips. Boat launching via Port Campbell Jetty Crane requires a permit from Parks Victoria.","boat","2026-07-27T02:58:01.044969Z","2026-08-04T05:36:16.070504Z",{"verdict":143,"evaluated_at":144,"models":145},"no_go","2026-10-03T02:19:30.741887Z",[146,152,157],{"model_name":147,"is_favourable":148,"value":149,"threshold":124,"unit":150,"operator":151},"Wind Speed",false,10.74,"kn","lte",{"model_name":153,"is_favourable":148,"value":154,"threshold":155,"unit":156,"operator":151},"Wave Height",1.544,0.5,"m",{"model_name":158,"is_favourable":148,"value":159,"threshold":40,"unit":160,"operator":161},"Visibility",0.67,"","gte",{"verdict":143,"rating":163,"evaluated_at":144,"generated_at":144,"source":164,"confidence":165,"visibility":168,"parameters":169,"models_passed":36,"models_total":123},"Hazardous","precomputed",{"level":166,"value":167},"High",100,{"score":159,"rating":118,"confidence":118},[170,172,177,180,185],{"name":153,"value":171,"label":118,"unit":156,"favourable":148,"score":5,"optimal_max":155,"marginal_max":36},1.544351331641767,{"name":173,"value":174,"label":118,"unit":175,"favourable":148,"score":36,"optimal_max":114,"marginal_max":176},"Swell Period",10.2,"s",12,{"name":147,"value":178,"label":118,"unit":150,"favourable":148,"score":36,"optimal_max":124,"marginal_max":179},10.735063454155606,15,{"name":181,"value":182,"label":118,"unit":183,"favourable":148,"score":5,"optimal_max":123,"marginal_max":184},"Precipitation",22.1,"mm",20,{"name":186,"value":118,"label":187,"unit":160,"favourable":188,"score":43,"optimal_max":118,"marginal_max":118},"Tidal Phase","slack",true,[190],{"id":191,"image_url":13,"sort_order":5,"is_primary":188,"moderation_status":192,"license":193,"license_url":118,"attribution":194,"author_name":195},"76a1e602-0aeb-4cf0-8f2e-0f900426ac48","approved","CC BY 3.0","Photo by Mark D. Norman \u002F Museums Victoria","Mark D. Norman \u002F Museums Victoria",{"display_name":197},"Daniel","unverified",1791009202607]