[{"data":1,"prerenderedAt":189},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-lonsdale-wall":9,"spot-lonsdale-wall":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 Lonsdale Wall - How's the Spot","Check snorkeling conditions at Lonsdale Wall, Victoria. Fair conditions, water 14.6°C, waves 0.16m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Flonsdale-wall","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","Lonsdale Wall","Stretching for roughly 1 km along the Lonsdale side of Port Phillip Heads, Lonsdale Wall is a spectacular underwater escarpment that forms part of the Port Phillip Heads Marine National Park. This...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-38.22882,145.060045,{"@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 Lonsdale Wall",{"@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\u002Flonsdale-wall",{"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":125,"area_boundary":56,"routes":56,"created_at":134,"updated_at":135,"today_conditions":136,"today_verdict_view":158,"images":185,"submitted_by":186,"region_name":26,"verification_status":188,"verified_at":56,"disputed":142,"verifier_count":5,"last_verified_display_name":56},"5ecf91c2-132d-49c8-af74-33118b49ce18","lonsdale-wall","Stretching for roughly 1 km along the Lonsdale side of Port Phillip Heads, Lonsdale Wall is a spectacular underwater escarpment that forms part of the Port Phillip Heads Marine National Park. This dramatic wall drops from around 12 m to 18 m depth, adorned with colourful sponges, ascidians, gorgonian fans, sea tulips, and hydroids that cling to sheer overhangs and rocky ledges. Strong tidal flows through The Heads make this an exhilarating drift environment, rewarding experienced snorkelers and divers with constant action and vibrant invertebrate life.","advanced",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],0.009584982480253773,0.008455112289219106,0.1525431574719473,0.006197386866469564,0.2725011450242494,0.006417059722901437,0.008552161129250356,0.000505806328973947,0.028440500326548847,0.06941761033656182,0.03201070739335061,0.03089887491598992,0.014962451310121526,0.10290492570186924,0.019445741901147007,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],44.38985562049182,315.7774696935229,294.0996178898242,31.149352782593436,26.56952116187844,239.75805709495455,152.66236852369502,186.7009657145664,30.938912546465904,288.94095184436145,289.51002370336386,280.08540723926586,16.167096090051647,225.8702402117749,196.8948193259505,"EOT20","1992-01-01T00:00:00Z",[110,114,118,122],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Strong tidal currents","Port Phillip Heads experience powerful tidal flows that can sweep snorkelers away from the wall. Best dived on slack tide only.","danger",{"name":115,"description":116,"severity":117,"season_start":56,"season_end":56},"Boat traffic","Located within the entrance to Port Phillip Bay, this site sees regular vessel traffic. A surface marker buoy is essential.","warning",{"name":119,"description":120,"severity":121,"season_start":56,"season_end":56},"Cold water temperatures","Water temperatures range from 10-18°C (50-64°F) year-round, requiring a thick wetsuit or drysuit even in summer.","caution",{"name":123,"description":124,"severity":121,"season_start":56,"season_end":56},"Limited visibility","Viz can drop rapidly after wind events or tidal changes; best conditions follow calm weather and neap tides.",{"directions":126,"parking":127,"facilities":128,"fees":132,"access_method":133},"Lonsdale Wall is accessed by boat from Queenscliff or Portsea. The wall lies inside Port Phillip Heads near the Lonsdale side. Common entry points are from Queenscliff Harbour (about 15-20 min run). GPS marks available from local dive shops.","Parking available at Queenscliff Harbour boat ramp and adjacent streets. Arrive early on weekends.",[129,130,131],"parking","toilets","boat_ramp","No entry fee for the marine park itself. Boat launching fees apply at Queenscliff Harbour ramp (approx. $10-20).","boat","2026-07-27T02:58:14.524347Z","2026-08-04T05:32:31.002679Z",{"verdict":137,"evaluated_at":138,"models":139},"marginal","2026-10-03T02:17:15.146168Z",[140,147,153],{"model_name":141,"is_favourable":142,"value":143,"threshold":144,"unit":145,"operator":146},"Wind Speed",false,10.06,10,"kn","lte",{"model_name":148,"is_favourable":149,"value":150,"threshold":151,"unit":152,"operator":146},"Wave Height",true,0.16,0.5,"m",{"model_name":154,"is_favourable":142,"value":155,"threshold":40,"unit":156,"operator":157},"Visibility",0.99,"","gte",{"verdict":137,"rating":159,"evaluated_at":138,"generated_at":138,"source":160,"confidence":161,"visibility":164,"parameters":165,"models_passed":36,"models_total":180},"Fair","precomputed",{"level":162,"value":163},"High",100,{"score":155,"rating":56,"confidence":56},[166,167,173,176,182],{"name":148,"value":150,"label":56,"unit":152,"favourable":149,"score":43,"optimal_max":151,"marginal_max":36},{"name":168,"value":169,"label":56,"unit":170,"favourable":142,"score":36,"optimal_max":171,"marginal_max":172},"Swell Period",10.75,"s",8,12,{"name":141,"value":174,"label":56,"unit":145,"favourable":142,"score":36,"optimal_max":144,"marginal_max":175},10.059372,15,{"name":177,"value":178,"label":56,"unit":179,"favourable":142,"score":5,"optimal_max":180,"marginal_max":181},"Precipitation",38.8,"mm",5,20,{"name":183,"value":56,"label":184,"unit":156,"favourable":142,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",[],{"display_name":187},"Daniel","unverified",1791009170210]