[{"data":1,"prerenderedAt":181},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-castle-rock-southern-end":9,"spot-castle-rock-southern-end":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 Castle Rock (southern end) - How's the Spot","Check snorkeling conditions at Castle Rock (southern end), Queensland. Excellent conditions, water 23.3°C, waves 0.09m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fcastle-rock-southern-end","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","Castle Rock (southern end)","Castle Rock marks the southern tip of Whitsunday Island, where a dramatic rocky headland frames a sheltered fringing reef teeming with marine life. The site features a shallow coral garden with vib...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-20.283,148.883,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Queensland","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Castle Rock (southern end)",{"@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=queensland",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=queensland",{"label":18,"href":50},"\u002Fspots\u002Fcastle-rock-southern-end",{"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":123,"area_boundary":56,"routes":56,"created_at":127,"updated_at":128,"today_conditions":129,"today_verdict_view":150,"images":177,"submitted_by":178,"region_name":26,"verification_status":180,"verified_at":56,"disputed":175,"verifier_count":5,"last_verified_display_name":56},"e5fedb96-8100-45c6-9bb2-88d337be5309","castle-rock-southern-end","Castle Rock marks the southern tip of Whitsunday Island, where a dramatic rocky headland frames a sheltered fringing reef teeming with marine life. The site features a shallow coral garden with vibrant hard and soft corals, colourful reef fish, and the chance to encounter turtles and rays. The bay is protected from most wind directions, making it a reliable snorkelling destination in the Whitsundays. Accessible only by boat, it offers a quieter alternative to the more crowded northern sites, with clear water and excellent visibility typical of the Great Barrier Reef Marine Park.","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],0.03360802817104002,0.022305232038798025,0.35229800634273434,0.0989064931767836,0.9997816160650151,0.01631885049315954,0.0019581985509781012,0.007112496003746626,0.2519868153905829,0.17605215987753908,0.10708746436097331,0.03248259589168377,0.0052883293030253275,0.34592852210297004,0.020690990253708293,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],358.65642085760663,50.70534856221499,38.45334129998494,352.1049323048968,24.421366747044548,94.50471029125089,88.28251942120141,184.06082985730478,5.764252123768016,10.827199474818713,33.91328108718647,342.8397080364554,320.715162977178,355.1962017855585,314.7483820058508,"EOT20","1992-01-01T00:00:00Z",[110,116,120],{"name":111,"description":112,"severity":113,"season_start":114,"season_end":115},"Southerly wind swell","Southerly winds can create choppy conditions and reduce visibility at the exposed southern end of the island.","caution",5,8,{"name":117,"description":118,"severity":119,"season_start":56,"season_end":56},"Marine stingers","Stinging jellyfish (including box jellyfish) may be present in Whitsunday waters during the warmer months.","warning",{"name":121,"description":122,"severity":113,"season_start":56,"season_end":56},"Boat traffic and moorings","Vessels anchor in the bay; be aware of boat traffic, mooring lines, and anchor chains when entering and exiting the water.",{"directions":124,"parking":125,"facilities":56,"fees":56,"access_method":126},"Castle Rock is located at the southern end of Whitsunday Island. Access is by private boat, charter vessel, or as part of a guided snorkel tour departing from Airlie Beach or Hamilton Island. The site is a popular anchorage for sailing yachts exploring the Whitsundays.","No parking at the site itself. Park at marinas in Airlie Beach (e.g., Port of Airlie or Abel Point Marina) if joining a tour or charter. Hamilton Island also has marina facilities for boat hire or tours.","boat","2026-07-27T02:56:39.994486Z","2026-08-04T05:37:15.121022Z",{"verdict":130,"evaluated_at":131,"models":132},"go","2026-10-03T02:20:52.106784Z",[133,140,145],{"model_name":134,"is_favourable":135,"value":136,"threshold":137,"unit":138,"operator":139},"Wind Speed",true,6.19,10,"kn","lte",{"model_name":141,"is_favourable":135,"value":142,"threshold":143,"unit":144,"operator":139},"Wave Height",0.09,0.5,"m",{"model_name":146,"is_favourable":135,"value":147,"threshold":40,"unit":148,"operator":149},"Visibility",2.7,"","gte",{"verdict":130,"rating":151,"evaluated_at":131,"generated_at":131,"source":152,"confidence":153,"visibility":156,"parameters":157,"models_passed":176,"models_total":114},"Excellent","precomputed",{"level":154,"value":155},"High",100,{"score":147,"rating":56,"confidence":56},[158,159,164,167,172],{"name":141,"value":142,"label":56,"unit":144,"favourable":135,"score":43,"optimal_max":143,"marginal_max":36},{"name":160,"value":161,"label":56,"unit":162,"favourable":135,"score":43,"optimal_max":115,"marginal_max":163},"Swell Period",2.35,"s",12,{"name":134,"value":165,"label":56,"unit":138,"favourable":135,"score":43,"optimal_max":137,"marginal_max":166},6.1911304000000005,15,{"name":168,"value":169,"label":56,"unit":170,"favourable":135,"score":43,"optimal_max":114,"marginal_max":171},"Precipitation",0.3,"mm",20,{"name":173,"value":56,"label":174,"unit":148,"favourable":175,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",false,4,[],{"display_name":179},"Daniel","unverified",1791009139521]