[{"data":1,"prerenderedAt":198},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-haystack-island-reef":9,"spot-haystack-island-reef":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 Haystack Island Reef - How's the Spot","Check snorkeling conditions at Haystack Island Reef, South Australia. Good conditions, water 15.8°C, waves 0.29m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fhaystack-island-reef","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","Haystack Island Reef","Haystack Island Reef is a spectacular offshore wall dive and snorkel site roughly 500 metres off the shore of Haystack Island on South Australia's Yorke Peninsula. A massive granite reef wall runs...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-35.322475,136.907385,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","South Australia","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Haystack Island Reef",{"@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=south-australia",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=south-australia",{"label":18,"href":50},"\u002Fspots\u002Fhaystack-island-reef",{"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":138,"area_boundary":56,"routes":56,"created_at":146,"updated_at":147,"today_conditions":148,"today_verdict_view":169,"images":194,"submitted_by":195,"region_name":26,"verification_status":197,"verified_at":56,"disputed":165,"verifier_count":5,"last_verified_display_name":56},"e5937677-343b-4f4f-9c1a-4c5ff263f32e","haystack-island-reef","Haystack Island Reef is a spectacular offshore wall dive and snorkel site roughly 500 metres off the shore of Haystack Island on South Australia's Yorke Peninsula. A massive granite reef wall runs parallel to the island for over a kilometre, rising from a sandy bottom at 22 metres up to about 10 metres in places. The terrain is riddled with caves, swim-throughs, chasms and gorges, while the walls are draped in vibrant red, yellow and orange soft corals and sponges. This remote, open-water site rewards adventurous snorkelers with abundant fish life and crayfish in crystal-clear conditions.","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],0.006326216390465131,0.011053362094899167,0.1953643252091134,0.03617696677269259,0.14855420677801717,0.0004510318142123285,0.008152376184734089,0.008791252168445939,0.010191651226305807,0.13679824759374404,0.05498266223152975,0.034181971804130795,0.017260172207764685,0.15329180913392845,0.015912092639697062,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],172.60398693075797,274.194016180057,254.62259570138718,168.88723343027368,120.20095901073368,315.15604686706837,121.09827436290128,252.6007511902236,192.12126621646297,238.28105108929805,255.3236209303094,222.95724007988872,5.241691404542961,160.5650247373435,162.64517085972125,"EOT20","1992-01-01T00:00:00Z",[110,116,120,124,129,132,135],{"name":111,"description":112,"severity":113,"season_start":114,"season_end":115},"Open ocean swell","Exposed offshore location with potential for strong surge and large swells, especially in southerly winds.","danger",6,8,{"name":117,"description":118,"severity":119,"season_start":56,"season_end":56},"Strong currents","Tidal currents can be strong around the reef wall and island channels.","warning",{"name":121,"description":122,"severity":123,"season_start":56,"season_end":56},"Boat traffic","Access is by boat only; vessel traffic in the area poses a collision hazard for snorkelers.","caution",{"name":125,"description":126,"severity":123,"season_start":127,"season_end":128},"Cold water temperatures","South Australian waters can be cold year-round, increasing risk of hypothermia on extended snorkels.",5,10,{"name":130,"description":131,"severity":113,"season_start":56,"season_end":56},"Open ocean swell \u002F surge","The site is exposed to open ocean swell and can be dangerous in moderate to rough conditions. Only attempt on calm days with minimal swell.",{"name":133,"description":134,"severity":119,"season_start":56,"season_end":56},"Tidal currents","Strong tidal currents can sweep along the reef wall, particularly during tidal changes.",{"name":136,"description":137,"severity":119,"season_start":56,"season_end":56},"Depth and overhead cave environments","Water depth drops to 22 m at the sand line; depth and potential for disorientation in caves requires strong buoyancy control.",{"directions":139,"parking":140,"facilities":141,"fees":144,"access_method":145},"Haystack Island lies off the western coast of Yorke Peninsula, South Australia, west of Marion Bay and Innes National Park. The reef is located approximately 500 metres offshore, parallel to the island. Access is by private boat launched from the Marion Bay boat ramp or via charter from Adelaide-based dive operators. The island itself is uninhabited and there are no ferry services.","Parking available at Marion Bay boat ramp (Innes National Park entry fee applies).",[142,143],"parking","boat_ramp","Innes National Park entry fee required for access via Marion Bay.","boat","2026-07-27T02:57:19.233760Z","2026-08-04T05:37:15.121020Z",{"verdict":149,"evaluated_at":150,"models":151},"go","2026-10-03T02:21:38.190469Z",[152,158,163],{"model_name":153,"is_favourable":154,"value":155,"threshold":128,"unit":156,"operator":157},"Wind Speed",true,1.79,"kn","lte",{"model_name":159,"is_favourable":154,"value":160,"threshold":161,"unit":162,"operator":157},"Wave Height",0.292,0.5,"m",{"model_name":164,"is_favourable":165,"value":166,"threshold":40,"unit":167,"operator":168},"Visibility",false,0.99,"","gte",{"verdict":149,"rating":170,"evaluated_at":150,"generated_at":150,"source":171,"confidence":172,"visibility":175,"parameters":176,"models_passed":40,"models_total":127},"Good","precomputed",{"level":173,"value":174},"High",100,{"score":166,"rating":56,"confidence":56},[177,178,183,186,191],{"name":159,"value":160,"label":56,"unit":162,"favourable":154,"score":43,"optimal_max":161,"marginal_max":36},{"name":179,"value":180,"label":56,"unit":181,"favourable":165,"score":36,"optimal_max":115,"marginal_max":182},"Swell Period",10.4,"s",12,{"name":153,"value":184,"label":56,"unit":156,"favourable":154,"score":43,"optimal_max":128,"marginal_max":185},1.79027664,15,{"name":187,"value":188,"label":56,"unit":189,"favourable":165,"score":36,"optimal_max":127,"marginal_max":190},"Precipitation",10.1,"mm",20,{"name":192,"value":56,"label":193,"unit":167,"favourable":165,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","ebb",[],{"display_name":196},"Daniel","unverified",1791009159516]