[{"data":1,"prerenderedAt":221},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-agincourt-reef-phil-s-backside":9,"spot-agincourt-reef-phil-s-backside":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 Agincourt Reef (Phil's Backside) - How's the Spot","Check snorkeling conditions at Agincourt Reef (Phil's Backside), Queensland. Excellent conditions, water 24.4°C, waves 0.17m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fagincourt-reef-phil-s-backside","https:\u002F\u002Fhowsthespot.syd1.cdn.digitaloceanspaces.com\u002Fspots\u002Fimport_agincourt-reef-phil-s-backside_0_e99ef8d44e5f.jpg",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Agincourt Reef (Phil's Backside)","Phil's Backside is a prized drift dive and snorkel site on the northern edge of Agincourt Reef No. 1, part of the outer ribbon reef system off Port Douglas. This exposed outer-reef location is swep...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-16.05,145.833333,{"@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 Agincourt Reef (Phil's Backside)",{"@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\u002Fagincourt-reef-phil-s-backside",{"id":52,"name":18,"slug":53,"latitude":22,"longitude":23,"description":54,"difficulty":55,"image_url":13,"status":56,"tide_constituents":57,"hazard_entries":108,"access_info_structured":140,"area_boundary":113,"routes":113,"created_at":151,"updated_at":152,"today_conditions":153,"today_verdict_view":174,"images":201,"submitted_by":218,"region_name":26,"verification_status":220,"verified_at":113,"disputed":199,"verifier_count":5,"last_verified_display_name":113},"20323807-d101-4606-8fcd-811433f94c19","agincourt-reef-phil-s-backside","Phil's Backside is a prized drift dive and snorkel site on the northern edge of Agincourt Reef No. 1, part of the outer ribbon reef system off Port Douglas. This exposed outer-reef location is swept by Coral Sea currents that bring crystalline visibility (often 20–30 m) and nutrient-rich upwellings, fuelling dense coral gardens of boulder, staghorn, and plate corals. Snorkelers drift over dramatic drop-offs, gutters, and caves where schooling red bass, fusiliers, and sweetlips gather, while grey reef sharks and turtles patrol the current. As one of the most pristine and accessible outer-reef sites on the Great Barrier Reef, Phil's Backside offers a true blue-water snorkeling experience far from coastal sediment.","intermediate","published",{"name":58,"amplitude":74,"phase":90,"latitude":22,"model":106,"epoch":107},[59,60,61,62,63,64,65,66,67,68,69,70,71,72,73],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[75,76,77,78,79,80,81,82,83,84,85,86,87,88,89],0.024737479640807768,0.02149445018830551,0.30927400039233993,0.08667474817759091,0.5079260739630298,0.0007936238063912337,0.010337869166279285,0.01032439332515785,0.17514631137068604,0.14861238421134115,0.09001465411799765,0.024519916592239205,0.011304883421151683,0.30361724495166414,0.02540663276057886,[91,92,93,94,95,96,97,98,99,100,101,102,103,104,105],319.58016835065206,49.09558419167752,40.45945879556675,298.1300618675592,343.68610918949145,142.85053954340268,8.398454743067553,42.86853492322386,328.1065872598833,10.534985074138158,37.05186764362386,0.1568630841214181,352.0730824607298,303.7045568281986,282.2555544424976,"EOT20","1992-01-01T00:00:00Z",[109,114,118,123,126,129,134,137],{"name":110,"description":111,"severity":112,"season_start":113,"season_end":113},"Strong tidal currents","Strong tidal flows sweep across the outer ribbon reef edge, particularly on incoming tides. Drift snorkeling is common and requires good fitness and comfort in current.","warning",null,{"name":115,"description":116,"severity":117,"season_start":113,"season_end":113},"Open ocean swell","The site is exposed to the open Coral Sea and can experience sudden southeasterly wind swells, making conditions choppy.","caution",{"name":119,"description":120,"severity":117,"season_start":121,"season_end":122},"Titan triggerfish aggression","During breeding season (typically September–December), titan triggerfish may aggressively defend nests in the sandy bottom areas.",9,12,{"name":124,"description":125,"severity":117,"season_start":113,"season_end":113},"Sharp coral \u002F shallow bommies","The reef has shallow coral bommies and gutters that can cause minor scrapes. Snorkelers should maintain buoyancy awareness.",{"name":127,"description":128,"severity":117,"season_start":113,"season_end":113},"Marine stingers (box jellyfish)","Marine stingers (box jellyfish) may be present during the warmer months (November to May). Stinger suits are recommended.",{"name":130,"description":131,"severity":112,"season_start":132,"season_end":133},"Marine stingers (jellyfish)","Marine stingers (including Irukandji and box jellyfish) are present in Queensland waters. Stinger suits are provided by tour operators and are strongly recommended during this period.",5,11,{"name":135,"description":136,"severity":117,"season_start":113,"season_end":113},"Tidal currents","Strong tidal currents can sweep along the outer edge of the ribbon reef, particularly near the drop-off to the continental shelf. Snorkelers must stay within marked swimming areas.",{"name":138,"description":139,"severity":117,"season_start":113,"season_end":113},"Severe sun exposure","Tropical sun exposure is intense year-round, with high UV index. Reflected glare off the water increases burn risk. Wear reef-safe sunscreen, a rash guard, and stay hydrated.",{"directions":141,"parking":142,"facilities":143,"fees":149,"access_method":150},"Agincourt Reef is located approximately 75 km (90 min by boat) northeast of Port Douglas, Queensland. Day trips depart from Port Douglas Marina aboard high-speed catamarans operated by Quicksilver, Poseidon, and other operators. Access is exclusively via organised snorkel tours — no private shore access.","Paid parking available at Port Douglas Marina and nearby public car parks. Arrive early for best availability.",[144,145,146,147,148],"toilets","parking","showers","drinking_water","picnic_tables","Day tours range from approximately AUD $200–$300 per adult, including snorkel equipment, reef tax, and lunch. 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