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Belize diving for US divers: the barrier reef vs Turneffe, Lighthouse Reef and Glover’s atolls, whether the Blue Hole is worth it, park fees, US nonstops, where to base, Gladden Spit whale sharks, a month table and a week’s costs.
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Cozumel diving from Palancar and Santa Rosa to Punta Sur: how the drift works, the real 2026 marine park fee and reef closures, US nonstops, cruise-day logistics, dive shops and packages, a month-by-month table and what a week costs.
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Which underwater camera to take on which dive trip, what housings, strobes, video lights and red filters cost in 2026, settings by water color, airline battery rules, courses, ethics and the best destinations for macro, wide-angle and video.
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Cage, cageless or scuba: how shark diving works, which species you can see where and when, real 2026 prices from Oahu and Jupiter to Bimini and the Farallones, the ISAF risk numbers, and why Guadalupe and Gansbaai have changed.
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Where to dive in Hawaii, island by island: the Kona manta night dive, blackwater, Molokini, the Lanai Cathedrals, Oahu’s wrecks, Kauai and Niihau, with checked 2026 prices, NOAA water temperatures, wildlife rules and a two-island itinerary.
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How scuba certification works for Americans: the three parts of an Open Water course, 2026 prices from Key Largo to Bonaire, referral dives, schedules, age and depth limits, and PADI vs SSI vs NAUI vs SDI.