[{"data":1,"prerenderedAt":216},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-yanchep-lagoon-southern-lagoon-beach":9,"spot-yanchep-lagoon-southern-lagoon-beach":51},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-02T06:59:37.379659Z",{"title":10,"description":11,"canonical_url":12,"og_image":13,"structured_data":14,"breadcrumbs":44},"Snorkeling Conditions at Yanchep Lagoon - Southern Lagoon Beach - How's the Spot","Check snorkeling conditions at Yanchep Lagoon - Southern Lagoon Beach, Western Australia. 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The southern...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-31.548109,115.636754,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Western Australia","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Yanchep Lagoon - Southern Lagoon Beach",{"@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=western-australia",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=western-australia",{"label":18,"href":50},"\u002Fspots\u002Fyanchep-lagoon-southern-lagoon-beach",{"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":136,"area_boundary":113,"routes":113,"created_at":146,"updated_at":147,"today_conditions":148,"today_verdict_view":170,"images":198,"submitted_by":213,"region_name":26,"verification_status":215,"verified_at":113,"disputed":161,"verifier_count":5,"last_verified_display_name":113},"fc7cf5a8-9c2a-42ef-a0b7-10b60baaae21","yanchep-lagoon-southern-lagoon-beach","Yanchep Lagoon is a protected, crescent-shaped beach about 45 minutes north of Perth, sheltered by a 800m limestone reef that creates calm, crystal-clear waters perfect for snorkeling. The southern end features a closed-off lagoon section that is ideal for beginners and families, with white sand and rock pools to explore. Inside the lagoon, snorkelers drift over sandy patches and reef channels spotting schools of herring, while more experienced swimmers can venture outside the reef to deeper 7m channels. Patrolled by lifesavers in summer, with a kiosk nearby.","beginner","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],0.004651355092783157,0.009263349365215981,0.16636872681756443,0.012999122480279615,0.05695352824455473,0.005124397086382359,0.006076137254084597,0.005159472387541654,0.013018768839112264,0.1223732026264409,0.04982256116823105,0.02275710519733968,0.013327378410838649,0.04205898972621291,0.003384294419773862,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],23.066203796286004,229.41000128612097,181.7165260291489,43.24926535009306,59.57123318178057,122.9283517504516,41.32749053147373,207.3393695439778,100.35984420635015,175.74697604329037,170.92312642144407,172.51253858532135,314.00327515737945,66.2375458857959,210.48044065364115,"EOT20","1992-01-01T00:00:00Z",[109,114,118,121,124,127,130,133],{"name":110,"description":111,"severity":112,"season_start":113,"season_end":113},"Rip currents over reef","A powerful rip current forms when incoming tide cascades over the reef, flowing away from shore through the surf zone. Year-round risk but strongest in summer when most visitors are present.","warning",null,{"name":115,"description":116,"severity":117,"season_start":113,"season_end":113},"Shifting sand bars","Shifting sand bars can temporarily swallow protected swimming sections; check conditions on Beachsafe before visiting.","caution",{"name":119,"description":120,"severity":117,"season_start":113,"season_end":113},"Shark presence","Sharks are present in WA waters; occasional sightings may close the beach.",{"name":122,"description":123,"severity":117,"season_start":113,"season_end":113},"Reduced visibility at low tide","At low tide, waves crash against the back of the reef churning up sediment and reducing visibility.",{"name":125,"description":126,"severity":112,"season_start":113,"season_end":113},"Deep drop-off zones","Deep drop-offs to 3 m inside the lagoon and up to 7 m outside the reef; less confident swimmers should stay between the flags.",{"name":128,"description":129,"severity":117,"season_start":113,"season_end":113},"Shifting sand bar at southern end","Shifting sand can temporarily close off the protected southern lagoon section throughout the year.",{"name":131,"description":132,"severity":112,"season_start":113,"season_end":113},"Deep water beyond reef","Outside the reef, depths drop to 7m with stronger currents beyond the patrolled area.",{"name":134,"description":135,"severity":117,"season_start":113,"season_end":113},"Low tide turbidity","Low tide creates waves crashing against the back of the reef, churning up sediment and reducing visibility.",{"directions":137,"parking":138,"facilities":139,"fees":144,"access_method":145},"Drive 45 mins north of Perth up Mitchell Freeway, turn right onto Hester Avenue, left onto Wanneroo Road, left onto Yanchep Beach Road, then left at Brazier Road.","Free parking available, fills early in summer.",[140,141,142,143],"toilets","parking","showers","drinking_water","Free","shore_entry","2026-07-27T02:58:47.429448Z","2026-08-04T05:37:15.121172Z",{"verdict":149,"evaluated_at":150,"models":151},"no_go","2026-10-02T02:25:17.946326Z",[152,159,165],{"model_name":153,"is_favourable":154,"value":155,"threshold":156,"unit":157,"operator":158},"Wind Speed",true,0.95,10,"kn","lte",{"model_name":160,"is_favourable":161,"value":162,"threshold":163,"unit":164,"operator":158},"Wave Height",false,2.005,0.5,"m",{"model_name":166,"is_favourable":161,"value":167,"threshold":40,"unit":168,"operator":169},"Visibility",1.65,"","gte",{"verdict":149,"rating":171,"evaluated_at":150,"generated_at":150,"source":172,"confidence":173,"visibility":176,"parameters":177,"models_passed":36,"models_total":193},"Hazardous","precomputed",{"level":174,"value":175},"High",92.5,{"score":167,"rating":113,"confidence":113},[178,180,186,189,195],{"name":160,"value":179,"label":113,"unit":164,"favourable":161,"score":5,"optimal_max":163,"marginal_max":36},2.0052269528557036,{"name":181,"value":182,"label":113,"unit":183,"favourable":161,"score":36,"optimal_max":184,"marginal_max":185},"Swell Period",11.1,"s",8,12,{"name":153,"value":187,"label":113,"unit":157,"favourable":154,"score":43,"optimal_max":156,"marginal_max":188},0.9524816000000002,15,{"name":190,"value":191,"label":113,"unit":192,"favourable":161,"score":36,"optimal_max":193,"marginal_max":194},"Precipitation",7.7,"mm",5,20,{"name":196,"value":113,"label":197,"unit":168,"favourable":161,"score":36,"optimal_max":113,"marginal_max":113},"Tidal Phase","ebb",[199,206],{"id":200,"image_url":13,"sort_order":36,"is_primary":154,"moderation_status":201,"license":202,"license_url":203,"attribution":204,"author_name":205},"66b38b78-1fa7-469b-b318-6a46a95afec2","approved","CC BY-SA 3.0","https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F3.0\u002F","Photo by Saberwyn","Saberwyn",{"id":207,"image_url":208,"sort_order":40,"is_primary":161,"moderation_status":201,"license":209,"license_url":210,"attribution":211,"author_name":212},"d4fb9bbb-2297-42cf-a8f8-9bc20c6a4784","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_yanchep-lagoon-southern-lagoon-beach_2_c1b12bbe730d.jpg","CC BY-SA 4.0","https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F","Photo by Jpoeta2","Jpoeta2",{"display_name":214},"Daniel","unverified",1790924527532]