[{"data":1,"prerenderedAt":186},["ShallowReactive",2],{"leaderboard-total":3,"spot-toothbrush-island-south":9,"spot-seo-toothbrush-island-south":151},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-02T06:59:37.379659Z",{"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":87,"area_boundary":17,"routes":17,"created_at":94,"updated_at":95,"today_conditions":96,"today_verdict_view":118,"images":146,"submitted_by":147,"region_name":149,"verification_status":150,"verified_at":17,"disputed":144,"verifier_count":5,"last_verified_display_name":17},"21d32187-435d-400a-af45-cd51cb8fbf2b","Toothbrush Island (South)","toothbrush-island-south",-33.86225,151.207684,"Toothbrush Island (South), also known as Flinders Island's southern end, is a renowned shore-entry snorkel and dive site just off Sydney's coastline. The \"South\" section features the rocky toothbrush-shaped islet that gives the site its name, with depths reaching around 16 metres. Underwater, snorkelers can explore two impressive caves and a swim-through passage affectionately nicknamed \"Toothpaste\" — a narrow channel between the island's southern tip and the adjacent reef. The kelp forests and rocky ledges here attract abundant fish life, making it a favourite for those seeking a more adventurous, off-the-beaten-path Sydney snorkel.","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],0.018240067955740777,0.0105051947567779,0.16091428358903176,0.027099054345562073,0.49320889935094564,0.00594724829186877,0.0025878326550050714,0.003566144628763342,0.10938752219685827,0.09322063198757674,0.045822152370361975,0.012802915882058494,0.015948965185787693,0.12237079341374832,0.00814950119512945,[53,54,55,56,57,58,59,60,61,62,63,64,65,66,67],280.7581846506733,10.555330740214458,327.3497416449652,314.2748116373376,308.2860331860405,243.22220060367732,243.79005063639835,56.99778066509288,294.797179486758,296.58127826254463,318.9698572815478,279.9809830895489,319.09278631902373,314.59382779444456,262.69751561408066,"EOT20","1992-01-01T00:00:00Z",[71,77,81,84],{"name":72,"description":73,"severity":74,"season_start":75,"season_end":76},"Ocean swell and surge","Exposed southern aspect can experience significant swell and surge, especially in southerly winds, making entry\u002Fexit tricky.","warning",5,8,{"name":78,"description":79,"severity":80,"season_start":17,"season_end":17},"Strong currents","Tidal currents can run swiftly around the island's southern tip, particularly on outgoing tides.","caution",{"name":82,"description":83,"severity":80,"season_start":17,"season_end":17},"Boat traffic","The area is used by recreational and charter boats; snorkelers should stay aware and use a dive\u002Fsnorkel float.",{"name":85,"description":86,"severity":80,"season_start":17,"season_end":17},"Sharp reef and rock ledges","Entry and exit involve traversing uneven, sharp sandstone reef platforms.",{"directions":88,"parking":89,"facilities":90,"fees":92,"access_method":93},"Located off the coast between Cronulla and Kurnell in Botany Bay \u002F Port Hacking area. Access is typically by boat from Cronulla or Bundeena, though some experienced snorkelers access via kayak launch from nearby beaches. Exact shore access requires local knowledge; most visitors approach by private or charter boat.","Limited street parking near Cronulla boat ramps or Bundeena wharf if launching a kayak. No parking directly at the island.",[91],"parking","No entry fee for the island itself. Charter boat fees vary.","shore_entry","2026-07-27T02:55:10.386358Z","2026-08-04T05:30:44.786627Z",{"verdict":97,"evaluated_at":98,"models":99},"go","2026-10-02T02:23:15.696286Z",[100,107,112],{"model_name":101,"is_favourable":102,"value":103,"threshold":104,"unit":105,"operator":106},"Wind Speed",true,5.15,10,"kn","lte",{"model_name":108,"is_favourable":102,"value":109,"threshold":110,"unit":111,"operator":106},"Wave Height",0.43,0.5,"m",{"model_name":113,"is_favourable":102,"value":114,"threshold":115,"unit":116,"operator":117},"Visibility",2.4,2,"","gte",{"verdict":97,"rating":119,"evaluated_at":98,"generated_at":98,"source":120,"confidence":121,"visibility":124,"parameters":125,"models_passed":145,"models_total":75},"Excellent","precomputed",{"level":122,"value":123},"High",92.5,{"score":114,"rating":17,"confidence":17},[126,129,134,137,141],{"name":108,"value":109,"label":17,"unit":111,"favourable":102,"score":127,"optimal_max":110,"marginal_max":128},3,1,{"name":130,"value":131,"label":17,"unit":132,"favourable":102,"score":127,"optimal_max":76,"marginal_max":133},"Swell Period",6.6,"s",12,{"name":101,"value":135,"label":17,"unit":105,"favourable":102,"score":127,"optimal_max":104,"marginal_max":136},5.1511759999999995,15,{"name":138,"value":5,"label":17,"unit":139,"favourable":102,"score":127,"optimal_max":75,"marginal_max":140},"Precipitation","mm",20,{"name":142,"value":17,"label":143,"unit":116,"favourable":144,"score":128,"optimal_max":17,"marginal_max":17},"Tidal Phase","ebb",false,4,[],{"display_name":148},"Daniel","New South Wales","unverified",{"title":152,"description":153,"canonical_url":154,"og_image":155,"structured_data":156,"breadcrumbs":179},"Snorkeling Conditions at Toothbrush Island (South) - How's the Spot","Check snorkeling conditions at Toothbrush Island (South), New South Wales. Excellent conditions, water 18.8°C, waves 0.43m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Ftoothbrush-island-south","https:\u002F\u002Fhowsthespot.com\u002Fog-default.png",[157,166],{"@context":158,"@type":159,"name":11,"description":160,"url":154,"geo":161,"address":163},"https:\u002F\u002Fschema.org","Place","Toothbrush Island (South), also known as Flinders Island's southern end, is a renowned shore-entry snorkel and dive site just off Sydney's coastline. The \"South\" section features the rocky toothbru...",{"@type":162,"latitude":13,"longitude":14},"GeoCoordinates",{"@type":164,"addressRegion":149,"addressCountry":165},"PostalAddress","Australia",{"@context":158,"@type":167,"name":168,"description":153,"url":154,"breadcrumb":169},"WebPage","Snorkeling Conditions at Toothbrush Island (South)",{"@context":158,"@type":170,"itemListElement":171},"BreadcrumbList",[172,176,178],{"@type":173,"position":128,"name":174,"item":175},"ListItem","Home","https:\u002F\u002Fhowsthespot.com",{"@type":173,"position":115,"name":149,"item":177},"https:\u002F\u002Fhowsthespot.com\u002Fexplore?region=new-south-wales",{"@type":173,"position":127,"name":11,"item":154},[180,182,184],{"label":174,"href":181},"\u002F",{"label":149,"href":183},"\u002Fexplore?region=new-south-wales",{"label":11,"href":185},"\u002Fspots\u002Ftoothbrush-island-south",1790924514993]