[{"data":1,"prerenderedAt":210},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-hamelin-bay-wrecks-katinka":9,"spot-hamelin-bay-wrecks-katinka":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 Hamelin Bay Wrecks (Katinka) - How's the Spot","Check snorkeling conditions at Hamelin Bay Wrecks (Katinka), Western Australia. Hazardous conditions, water 18.1°C, waves 2.17m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fhamelin-bay-wrecks-katinka","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","Hamelin Bay Wrecks (Katinka)","The Katinka is an 805-ton iron barque that grounded in a ferocious 85-knot winter storm in July 1900, now lying in just 5 metres of water 150 metres off Hamelin Bay's white-sand beach. The site is...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-34.2053,115.037,{"@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 Hamelin Bay Wrecks (Katinka)",{"@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\u002Fhamelin-bay-wrecks-katinka",{"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":146,"area_boundary":56,"routes":56,"created_at":157,"updated_at":158,"today_conditions":159,"today_verdict_view":181,"images":206,"submitted_by":207,"region_name":26,"verification_status":209,"verified_at":56,"disputed":172,"verifier_count":5,"last_verified_display_name":56},"99abe188-9b4d-4ba9-9d75-2f6876a5908c","hamelin-bay-wrecks-katinka","The Katinka is an 805-ton iron barque that grounded in a ferocious 85-knot winter storm in July 1900, now lying in just 5 metres of water 150 metres off Hamelin Bay's white-sand beach. The site is the most intact and visually impressive wreck in the bay, with its bow, stern, masts, windlass and timber cargo still recognisable among the collapsed iron wreckage. Snorkellers float directly over a piece of maritime history, while the surrounding bay is also famous for its resident friendly stingrays that glide along the shoreline. Located near the former timber port, it offers a unique blend of history, marine encounters and clear sheltered waters.","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],0.011165777726472032,0.009246877110600831,0.19053531621806358,0.017638744647971317,0.04586926145100623,0.0013087442461172576,0.0031568551502504454,0.0034740758819846464,0.022265765507542418,0.14367821860782776,0.05715362527941771,0.03698880398341105,0.004978522135811862,0.05391022671061247,0.0021036794780086216,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],87.09866960995481,226.5650977089366,190.10347328250054,42.98855892412479,86.87302286532605,283.8244654094973,44.17937343884756,239.98907980784708,134.8783250617695,181.44498264208403,186.48103881723497,175.59630808906013,358.2057761394014,62.08400781966202,145.6387152366509,"EOT20","1992-01-01T00:00:00Z",[110,116,120,123,127,130,133,136,139,142],{"name":111,"description":112,"severity":113,"season_start":114,"season_end":115},"Swell and surge conditions","The Katinka is the northernmost wreck in Hamelin Bay and less protected from swell; visibility drops rapidly when swell exceeds 1.0 m as sand stirs up easily.","warning",5,9,{"name":117,"description":118,"severity":119,"season_start":56,"season_end":56},"Variable visibility","Visibility ranges from 2–10 metres and can change quickly with swell activity and wind, making orientation on the wreck more challenging.","caution",{"name":121,"description":122,"severity":119,"season_start":56,"season_end":56},"Outgoing tide current","Tidal movement across the shallow sandy bottom can create a noticeable current when the tide runs out, especially near the wreck structure.",{"name":124,"description":125,"severity":126,"season_start":114,"season_end":115},"Cold water and winter storms","Winter months (May–Sep) bring the strongest cold fronts and gale-force winds; conditions can deteriorate rapidly, as the Katinka's own history attests.","danger",{"name":128,"description":129,"severity":119,"season_start":56,"season_end":56},"Protected heritage site — no touching","The wreck is protected under the Historic Shipwrecks Act; all artefacts, timber cargo and iron structure must not be disturbed or removed.",{"name":131,"description":132,"severity":119,"season_start":114,"season_end":115},"Swell and surge","Swell rolling through shallow 5 m depth stirs up sand, reducing visibility to 2-10 m. Best when swell <1.0 m.",{"name":134,"description":135,"severity":119,"season_start":114,"season_end":115},"Poor visibility","Sand suspension in the water column can reduce visibility rapidly, especially during winter storms and after swell passes through.",{"name":137,"description":138,"severity":113,"season_start":56,"season_end":56},"Sharp submerged wreckage","Iron wreckage, collapsed hull sections, and timber cargo debris on the seabed present cutting and entanglement hazards.",{"name":140,"description":141,"severity":119,"season_start":56,"season_end":56},"Historic Shipwrecks Act protection","All sites older than 75 years are fully protected — no interference, removal, or disturbance permitted.",{"name":143,"description":144,"severity":113,"season_start":114,"season_end":145},"Cold winter conditions","Winter storms with extreme wind gusts (up to 85 knots recorded) make the site inaccessible; the area is less protected from swell than southern Hamelin Bay sites.",8,{"directions":147,"parking":148,"facilities":149,"fees":155,"access_method":156},"From Margaret River, take Caves Road south-west to Hamelin Bay. Turn onto Hamelin Bay Road and follow it to the beach carpark. The Katinka wreck lies approximately 150 m off the beach, about 1.2 km north of the old Hamelin Bay jetty. It is a swim of about 150–200 m from shore; the site is easily located from the surface in good visibility.","Large carpark available at Hamelin Bay Beach near the boat ramp and holiday park. Fills quickly during peak summer holiday period.",[150,151,152,153,154],"parking","toilets","showers","picnic_tables","boat_ramp","No fees for beach access or snorkelling.","shore_entry","2026-07-27T02:59:02.165781Z","2026-08-04T05:34:24.990832Z",{"verdict":160,"evaluated_at":161,"models":162},"no_go","2026-10-03T02:22:36.872310Z",[163,170,176],{"model_name":164,"is_favourable":165,"value":166,"threshold":167,"unit":168,"operator":169},"Wind Speed",true,2.12,10,"kn","lte",{"model_name":171,"is_favourable":172,"value":173,"threshold":174,"unit":175,"operator":169},"Wave Height",false,2.17,0.5,"m",{"model_name":177,"is_favourable":172,"value":178,"threshold":40,"unit":179,"operator":180},"Visibility",1.65,"","gte",{"verdict":160,"rating":182,"evaluated_at":161,"generated_at":161,"source":183,"confidence":184,"visibility":187,"parameters":188,"models_passed":40,"models_total":114},"Hazardous","precomputed",{"level":185,"value":186},"High",100,{"score":178,"rating":56,"confidence":56},[189,190,195,198,203],{"name":171,"value":173,"label":56,"unit":175,"favourable":172,"score":5,"optimal_max":174,"marginal_max":36},{"name":191,"value":192,"label":56,"unit":193,"favourable":172,"score":36,"optimal_max":145,"marginal_max":194},"Swell Period",11.6,"s",12,{"name":164,"value":196,"label":56,"unit":168,"favourable":165,"score":43,"optimal_max":167,"marginal_max":197},2.1187856000000003,15,{"name":199,"value":200,"label":56,"unit":201,"favourable":165,"score":43,"optimal_max":114,"marginal_max":202},"Precipitation",2.2,"mm",20,{"name":204,"value":56,"label":205,"unit":179,"favourable":172,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","ebb",[],{"display_name":208},"Daniel","unverified",1791009158163]