[{"data":1,"prerenderedAt":196},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-big-reef-point-danger-portland":9,"spot-big-reef-point-danger-portland":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 Big Reef (Point Danger, Portland) - How's the Spot","Check snorkeling conditions at Big Reef (Point Danger, Portland), Victoria. Hazardous conditions, water 14.6°C, waves 0.34m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fbig-reef-point-danger-portland","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","Big Reef (Point Danger, Portland)","Big Reef lies about 1.2 km south of Point Danger off Portland, Victoria, on the Discovery Coast. This exposed offshore reef drops from 5 m to 15 m depth, with a quick drop on the eastern side and a...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-38.40458,141.64905,{"@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 Big Reef (Point Danger, Portland)",{"@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\u002Fbig-reef-point-danger-portland",{"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":135,"area_boundary":56,"routes":56,"created_at":143,"updated_at":144,"today_conditions":145,"today_verdict_view":166,"images":192,"submitted_by":193,"region_name":26,"verification_status":195,"verified_at":56,"disputed":151,"verifier_count":5,"last_verified_display_name":56},"9f44a6c9-fbef-497f-a025-0a124d7199e6","big-reef-point-danger-portland","Big Reef lies about 1.2 km south of Point Danger off Portland, Victoria, on the Discovery Coast. This exposed offshore reef drops from 5 m to 15 m depth, with a quick drop on the eastern side and a gradual slope to the west. Once a major contributor to the commercial abalone catch, the reef still offers dramatic underwater terrain with crevices, boulder fields, and kelp beds. Snorkeling here is best on calm, low-swell days with light winds. The site sits within reach of the Point Danger Marine Sanctuary, known for its diversity of sea slugs, reef fish, and eagle rays. Access is primarily by boat from Portland Harbour ramps, about 15 minutes away.","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],0.0042156880471880195,0.01018687890272812,0.17719067490647597,0.038991572308003826,0.13008706372617224,0.003411639033620929,0.0052598922977803,0.00444313848454731,0.008934180545435011,0.1306209552364187,0.054607988031962075,0.033684994487025555,0.010153190844770468,0.13679199280720847,0.011935873548443285,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],164.81877794608818,281.3254805989403,255.72802287811925,115.49375378058507,44.443082427305285,115.07915459182288,169.02806066981793,246.4019061295407,291.1766945383901,237.4092098304426,250.71204209281507,224.18044630931877,7.714665238233578,113.3329481198889,120.5075285582604,"EOT20","1992-01-01T00:00:00Z",[110,116,119,123,127,131],{"name":111,"description":112,"severity":113,"season_start":114,"season_end":115},"Swell exposure","Big Reef is fully exposed to southern and south-westerly swells. Requires calm conditions with low swell and light winds.","warning",6,8,{"name":117,"description":118,"severity":113,"season_start":56,"season_end":56},"Strong currents","Strong currents and undertows can develop around the reef, particularly during changing tides and higher swell periods.",{"name":120,"description":121,"severity":122,"season_start":56,"season_end":56},"Boat traffic","Access is by boat only; nearby boat lanes and fishing vessels operate in the area around Point Danger.","caution",{"name":124,"description":125,"severity":126,"season_start":56,"season_end":56},"Remote offshore location","Located 1.2 km offshore. Snorkelers must be strong swimmers and self-sufficient; no immediate shore access.","danger",{"name":128,"description":129,"severity":113,"season_start":114,"season_end":130},"Swell Dependant","Big Reef is very weather-dependant and best dived in low swell with light winds. Large southerly swells make the site dangerous or impossible.",10,{"name":132,"description":133,"severity":122,"season_start":36,"season_end":134},"Rapid Depth Change","The eastern side drops quickly from 5 m to 15 m, which can disorient snorkelers not expecting the sudden drop-off.",12,{"directions":136,"parking":137,"facilities":138,"fees":141,"access_method":142},"Big Reef is located approximately 1.2 km south of Point Danger, Portland. Access is by boat only, about 15 minutes from the Portland Harbour boat ramps on Lee Breakwater Road (North and South ramps available).","Parking available at Portland Harbour near the Lee Breakwater Road boat ramps.",[139,140],"boat_ramp","parking","No fees for launching at Portland Harbour public boat ramps. Point Danger Marine Sanctuary is a no-take sanctuary zone.","boat","2026-07-27T02:57:53.136346Z","2026-08-04T05:34:24.990854Z",{"verdict":146,"evaluated_at":147,"models":148},"no_go","2026-10-03T02:18:41.494152Z",[149,155,161],{"model_name":150,"is_favourable":151,"value":152,"threshold":130,"unit":153,"operator":154},"Wind Speed",false,24.64,"kn","lte",{"model_name":156,"is_favourable":157,"value":158,"threshold":159,"unit":160,"operator":154},"Wave Height",true,0.339,0.5,"m",{"model_name":162,"is_favourable":151,"value":163,"threshold":40,"unit":164,"operator":165},"Visibility",0.99,"","gte",{"verdict":146,"rating":167,"evaluated_at":147,"generated_at":147,"source":168,"confidence":169,"visibility":172,"parameters":173,"models_passed":40,"models_total":187},"Hazardous","precomputed",{"level":170,"value":171},"High",100,{"score":163,"rating":56,"confidence":56},[174,176,180,183,189],{"name":156,"value":175,"label":56,"unit":160,"favourable":157,"score":43,"optimal_max":159,"marginal_max":36},0.33896117978666673,{"name":177,"value":178,"label":56,"unit":179,"favourable":151,"score":36,"optimal_max":115,"marginal_max":134},"Swell Period",11.15,"s",{"name":150,"value":181,"label":56,"unit":153,"favourable":151,"score":5,"optimal_max":130,"marginal_max":182},24.63697505914418,15,{"name":184,"value":185,"label":56,"unit":186,"favourable":151,"score":36,"optimal_max":187,"marginal_max":188},"Precipitation",17.4,"mm",5,20,{"name":190,"value":56,"label":191,"unit":164,"favourable":157,"score":43,"optimal_max":56,"marginal_max":56},"Tidal Phase","slack",[],{"display_name":194},"Daniel","unverified",1791009130792]