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Short paths into the atlas — pick one and follow the seven sections.
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🏊 Swim
4Pool swimming
Lane discipline, stroke mechanics and public-bath access — the lowest-friction way most people first meet structured water time.
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🌊 SwimOpen-water swimming
Lakes, rivers and seas without a wall — sighting, temperature and the difference between a lido and a 10 km World Aquatics race.
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🧒 SwimKids swimming
The public-health version of swimming — staged lessons, touch supervision and the long gap between a 10-metre badge and a safe beach.
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🏅 SwimCompetitive swimming
World Aquatics rulebook swimming — four strokes, a pace clock, and the gap between a club heat and an Olympic final.
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Snorkeling
Mask, snorkel and fins at the surface — the highest-wow, lowest-gear way to see a reef without a cylinder.
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🪸 SnorkelReef etiquette
The rulebook that sits under every snorkel and dive — no standing, no chasing, no souvenirs, and why parks now say it in five languages.
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🫧 Scuba
3Recreational scuba
Open-water scuba to 18–40 m — PADI, SSI and the difference between a holiday course and a craft.
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🚢 ScubaWreck diving
Ships as reefs and as overhead environments — from the Yongala and Thistlegorm exteriors to cavern-style penetration risk.
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🌙 ScubaNight diving
Scuba after civil twilight — lights, buddy distance and a risk score that sits with wrecks, not with pool lanes.
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Surfing
Riding breaking waves on a board — Polynesian roots, a high skill ceiling, and a seasonality score that follows swell, not a pool timetable.
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🛶 SurfaceStand-up paddle
Standing on a wide board with a long paddle: Hawaiian beach-boy roots, a mid-skill flat-water craft, and a surf variant that is not a shortboard.
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🦺 SurfaceWater safety
Flags, barriers and supervision: the public-health layer under every swim, snorkel and paddle, scored for access rather than spectacle.
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Great Barrier Reef
The world's largest coral-reef system: GBRMPA zoning, a 1981 UNESCO listing, and snorkel pontoons that sit beside wrecks like the Yongala.
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🪼 Points of the worldPalau
Micronesian reefs and a jellyfish lake: Blue Corner currents, a 2009 shark sanctuary, and the Palau Pledge stamped in 2017.
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🏝️ Points of the worldMaldives
Twenty-six atolls of thilas and channels: house reefs, Hanifaru manta season, and a resort geography that is not a single lagoon.
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🦜 Points of the worldRaja Ampat
The Four Kings of West Papua: Cape Kri fish counts, manta sanctuaries, a PIN entry ticket, and reefs that set the wow-factor ceiling of this atlas.
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🌅 Points of the worldRed Sea
A rift-sea of walls and wrecks: Ras Mohammed, the Thistlegorm, Dahab's Blue Hole, and a year-round seasonality score that still bows to wind.
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🌺 Points of the worldHawaii
A volcanic archipelago of bays and breaks: Hanauma tickets, Kona manta nights, Kealakekua walls, and a 2018 sunscreen statute.
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🌴 Points of the worldCaribbean
A sea of walls, wrecks and marine parks: Hol Chan, Palancar, Bloody Bay Wall, Bonaire shore tags, and a Kittiwake that was sunk on purpose.
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🌋 Points of the worldJeju
A volcanic Korean island of haenyeo coasts: Munseom, Beomseom, Udo, and a 2016 UNESCO listing for women divers who work on one breath.
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🐬 Points of the worldPhilippines
An archipelago of community reefs and wrecks: Apo Island, Coron, Tubbataha, Malapascua threshers, and a March-June park season in the Sulu Sea.
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🐢 Points of the worldOkinawa
A Ryukyu chain of parks and limestone: Kerama National Park, Ishigaki manta water, the Blue Cave at Cape Maeda, and a temperate-to-subtropical season.
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