[{"data":1,"prerenderedAt":190},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-sir-joseph-banks-group-marine-park-tumby-bay-area":9,"spot-sir-joseph-banks-group-marine-park-tumby-bay-area":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 Sir Joseph Banks Group Marine Park (Tumby Bay area) - How's the Spot","Check snorkeling conditions at Sir Joseph Banks Group Marine Park (Tumby Bay area), South Australia. Good conditions, water 16.5°C, waves 0.33m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fsir-joseph-banks-group-marine-park-tumby-bay-area","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","Sir Joseph Banks Group Marine Park (Tumby Bay area)","Sir Joseph Banks Group Marine Park lies off the coast of Tumby Bay in lower Spencer Gulf, protecting a chain of low-lying limestone-capped islands surrounded by shallow reefs, seagrass meadows, sal...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-34.592955,136.271484,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","South Australia","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Sir Joseph Banks Group Marine Park (Tumby Bay area)",{"@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=south-australia",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=south-australia",{"label":18,"href":50},"\u002Fspots\u002Fsir-joseph-banks-group-marine-park-tumby-bay-area",{"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":127,"area_boundary":56,"routes":56,"created_at":135,"updated_at":136,"today_conditions":137,"today_verdict_view":159,"images":186,"submitted_by":187,"region_name":26,"verification_status":189,"verified_at":56,"disputed":155,"verifier_count":5,"last_verified_display_name":56},"ec49d54e-fd49-48f5-aa2f-54bed7626b17","sir-joseph-banks-group-marine-park-tumby-bay-area","Sir Joseph Banks Group Marine Park lies off the coast of Tumby Bay in lower Spencer Gulf, protecting a chain of low-lying limestone-capped islands surrounded by shallow reefs, seagrass meadows, saltmarsh, and uncommon popcorn coral. With over 70 species of fish, the clear, sheltered waters offer outstanding snorkeling around rocky island edges and sandy bays. The park is also a haven for Australian sea lions, dolphins, and diverse seabirds. Best accessed by boat from Tumby Bay, the islands provide a wild, remote snorkeling experience set against the dramatic coastal landscape of the Eyre Peninsula.","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],0.009301814640848012,0.015024618992109402,0.24319109477448617,0.06594894298930463,0.2223538707635443,0.0015831177017504774,0.00631390930196215,0.00678582085502712,0.01671832481012878,0.16846385115008652,0.0707794758032989,0.04201665274863958,0.018308226101638483,0.23378653929654827,0.018992354817793967,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],170.4974562858814,275.5564573074888,249.64719534379282,169.37116339122113,125.79072528080894,110.24618820492402,140.70925143358,267.80051726278924,194.432317885682,233.72676780149197,248.05750658352656,219.65008791638485,338.069674515489,166.98331591815244,165.27194046115196,"EOT20","1992-01-01T00:00:00Z",[110,114,117,121],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Boat traffic in channels","The park is a popular fishing and charter destination; boat traffic in the narrow channels between islands can be hazardous for snorkelers.","warning",{"name":115,"description":116,"severity":113,"season_start":56,"season_end":56},"Strong tidal currents","Tidal flows through Spencer Gulf and between the islands can create strong, unpredictable currents, especially around reef edges.",{"name":118,"description":119,"severity":120,"season_start":56,"season_end":56},"Remote location","Limited emergency services and long distance from shore (12 nautical miles from Tumby Bay) mean any incident requires significant response time.","danger",{"name":122,"description":123,"severity":124,"season_start":125,"season_end":126},"Variable weather and swell","Southern Ocean swells and sudden weather changes can create rough conditions in exposed areas around the islands.","caution",5,9,{"directions":128,"parking":129,"facilities":130,"fees":133,"access_method":134},"Access to Sir Joseph Banks Group Marine Park is by private or charter boat from Tumby Bay (12 nautical miles east), Port Lincoln, Ski Beach, Second Creek, Wisemans Beach, Louth Bay, or North Shields. The islands are about 20 km southeast off the coast of Tumby Bay.","Parking available at Tumby Bay boat ramp and at various access points along the coast including Ski Beach, Louth Bay, and North Shields.",[131,132],"parking","boat_ramp","No entry fee for the marine park itself. 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