[{"data":1,"prerenderedAt":212},["ShallowReactive",2],{"leaderboard-total":3,"spot-mettam-s-pool":9,"spot-seo-mettam-s-pool":178},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-03T06:32:05.526386Z",{"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":105,"area_boundary":75,"routes":75,"created_at":115,"updated_at":116,"today_conditions":117,"today_verdict_view":139,"images":166,"submitted_by":174,"region_name":176,"verification_status":177,"verified_at":75,"disputed":129,"verifier_count":5,"last_verified_display_name":75},"75f99100-7761-4d05-a63d-b168971f4da5","Mettam's Pool","mettam-s-pool",-31.863791,115.75188,"Mettam's Pool is a sheltered natural limestone reef pool within Marmion Marine Park on Perth's northern coastline, just north of Trigg Beach. The limestone reef creates a calm, shallow lagoon (1–6 m deep) protected from the open ocean swell, making it one of Perth's most popular and family-friendly snorkeling destinations. Snorkelers explore a maze of limestone gutters, troughs, and small caves teeming with marine life. The pool stretches roughly 600 m along the shore and offers crystal-clear waters on calm summer days, with easy shore access via stairs from West Coast Drive.","beginner","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_mettam-s-pool_0_cda0f0d76227.jpg","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],0.004349365941535819,0.00926741896775185,0.1666072050159385,0.01344304367083093,0.055314134950340516,0.004960114534354051,0.005349492418752834,0.004627878303902165,0.013270664839166953,0.1223946399999975,0.050422269524137565,0.022978820472093663,0.013701882408665931,0.04189887111239728,0.003185717441722617,[53,54,55,56,57,58,59,60,61,62,63,64,65,66,67],32.465438398763304,227.72670912886508,181.79600509759723,41.14901925599287,59.14250614771857,127.84745873268706,36.210051294030364,217.53243682831817,104.15965933221861,175.95879501515287,171.12388371159034,172.82430128822807,318.29751286006194,65.03368873326534,220.8471923124807,"EOT20","1992-01-01T00:00:00Z",[71,76,79,82,87,90,95,98,102],{"name":72,"description":73,"severity":74,"season_start":75,"season_end":75},"Surge and swell","Onshore swell and waves breaking over the reef can create surge and reduced visibility, especially when westerly winds pick up after midday.","caution",null,{"name":77,"description":78,"severity":74,"season_start":75,"season_end":75},"Tidal currents","Tidal currents can develop, particularly around the change of tide, making it harder for inexperienced swimmers.",{"name":80,"description":81,"severity":74,"season_start":75,"season_end":75},"Shallow reef and rocky entry","The limestone reef shelf is very shallow at low tide and the entry beach has scattered rocks. Care needed when entering and exiting.",{"name":83,"description":84,"severity":74,"season_start":85,"season_end":86},"Reef surge and swell","Surge and breaking waves can push snorkellers onto the shallow reef when conditions are rough, especially in afternoon sea breezes.",1,12,{"name":88,"description":89,"severity":74,"season_start":75,"season_end":75},"Unpatrolled beach","No lifeguards patrol this beach; snorkellers must assess conditions themselves.",{"name":91,"description":92,"severity":74,"season_start":93,"season_end":94},"Swell surge on outer reef edge","When swell is above 1.5 m, surge can push snorkelers into sharp limestone on the outer reef edge. Best on calm days.",5,9,{"name":96,"description":97,"severity":74,"season_start":75,"season_end":75},"Sharp limestone reef","The limestone platform is very sharp and can cause cuts if you stand or slip. Wear reef shoes or booties.",{"name":99,"description":100,"severity":74,"season_start":101,"season_end":86},"Strong afternoon sea breeze","Afternoon south-westerly winds can pick up, creating choppy surface conditions inside the pool and making exit tricky.",10,{"name":103,"description":104,"severity":74,"season_start":75,"season_end":75},"Low tide exposure","At very low tides the pool becomes very shallow (under 1 m), reducing snorkeling space and increasing risk of scraping against reef.",{"directions":106,"parking":107,"facilities":108,"fees":113,"access_method":114},"From West Coast Highway, take Karrinup Road west to the coast. Turn right onto West Coast Drive. Look for black Mettam's Pool signs on the left. Park at the car park north of the reef, then follow the footpath to the stairs down to the beach.","Free car park available on West Coast Drive, north of the reef. Street parking also available along West Coast Drive.",[109,110,111,112],"parking","toilets","showers","picnic_tables","Free","shore_entry","2026-07-27T02:58:45.914456Z","2026-08-04T05:34:24.990629Z",{"verdict":118,"evaluated_at":119,"models":120},"marginal","2026-10-03T02:22:29.492167Z",[121,127,133],{"model_name":122,"is_favourable":123,"value":124,"threshold":101,"unit":125,"operator":126},"Wind Speed",true,1.67,"kn","lte",{"model_name":128,"is_favourable":129,"value":130,"threshold":131,"unit":132,"operator":126},"Wave Height",false,0.965,0.5,"m",{"model_name":134,"is_favourable":123,"value":135,"threshold":136,"unit":137,"operator":138},"Visibility",2.1,2,"","gte",{"verdict":118,"rating":140,"evaluated_at":119,"generated_at":119,"source":141,"confidence":142,"visibility":145,"parameters":146,"models_passed":136,"models_total":93},"Fair","precomputed",{"level":143,"value":144},"High",100,{"score":135,"rating":75,"confidence":75},[147,149,154,158,163],{"name":128,"value":148,"label":75,"unit":132,"favourable":129,"score":85,"optimal_max":131,"marginal_max":85},0.9649982073622827,{"name":150,"value":151,"label":75,"unit":152,"favourable":129,"score":85,"optimal_max":153,"marginal_max":86},"Swell Period",11.35,"s",8,{"name":122,"value":155,"label":75,"unit":125,"favourable":123,"score":156,"optimal_max":101,"marginal_max":157},1.6670081890605317,3,15,{"name":159,"value":160,"label":75,"unit":161,"favourable":123,"score":156,"optimal_max":93,"marginal_max":162},"Precipitation",0.8,"mm",20,{"name":164,"value":75,"label":165,"unit":137,"favourable":129,"score":85,"optimal_max":75,"marginal_max":75},"Tidal Phase","ebb",[167],{"id":168,"image_url":17,"sort_order":5,"is_primary":123,"moderation_status":169,"license":170,"license_url":171,"attribution":172,"author_name":173},"28727967-dd65-4432-87c9-cd4a465f8876","approved","CC BY-SA 3.0","https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F3.0\u002F","Pete.martin","Pete Martin",{"display_name":175},"Daniel","Western Australia","unverified",{"title":179,"description":180,"canonical_url":181,"og_image":17,"structured_data":182,"breadcrumbs":205},"Snorkeling Conditions at Mettam's Pool - How's the Spot","Check snorkeling conditions at Mettam's Pool, Western Australia. Fair conditions, water 19.3°C, waves 0.96m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fmettam-s-pool",[183,192],{"@context":184,"@type":185,"name":11,"description":186,"url":181,"geo":187,"address":189},"https:\u002F\u002Fschema.org","Place","Mettam's Pool is a sheltered natural limestone reef pool within Marmion Marine Park on Perth's northern coastline, just north of Trigg Beach. The limestone reef creates a calm, shallow lagoon (1–6...",{"@type":188,"latitude":13,"longitude":14},"GeoCoordinates",{"@type":190,"addressRegion":176,"addressCountry":191},"PostalAddress","Australia",{"@context":184,"@type":193,"name":194,"description":180,"url":181,"breadcrumb":195},"WebPage","Snorkeling Conditions at Mettam's Pool",{"@context":184,"@type":196,"itemListElement":197},"BreadcrumbList",[198,202,204],{"@type":199,"position":85,"name":200,"item":201},"ListItem","Home","https:\u002F\u002Fhowsthespot.com",{"@type":199,"position":136,"name":176,"item":203},"https:\u002F\u002Fhowsthespot.com\u002Fexplore?region=western-australia",{"@type":199,"position":156,"name":11,"item":181},[206,208,210],{"label":200,"href":207},"\u002F",{"label":176,"href":209},"\u002Fexplore?region=western-australia",{"label":11,"href":211},"\u002Fspots\u002Fmettam-s-pool",1791009174057]