Quick answer: The top dive trips are the Great Barrier Reef, Raja Ampat, the Red Sea (Egypt), the Maldives and the Galápagos.
For coral, big animals and visibility, these are the world’s most rewarding places to put on a tank — sorted by what makes each special.
The 10 best dive destinations
Raja Ampat, Indonesia
Best months: Jul–Sep · 23–33°C days · rainy (ERA5 climate data)
The most biodiverse marine area on earth — soft coral and clouds of fish.
Great Barrier Reef, Australia
The world’s largest reef system, with endless coral and reef life.
Red Sea, Egypt
Best months: Nov–Jan · 12–23°C days · dry (ERA5 climate data)
Warm, clear, affordable diving with coral walls and wrecks.
Maldives
Best months: Jan–Mar · 27–28°C days · some rain (ERA5 climate data)
Manta rays, whale sharks and reef channels with superb visibility.
Galápagos, Ecuador
Best months: Jul–Sep · 7–19°C days · some rain (ERA5 climate data)
Hammerheads, sea lions and marine iguanas — advanced, current-heavy diving.
Palau, Micronesia
Blue Corner, jellyfish lake and WWII wrecks.
Belize (Blue Hole)
The iconic Great Blue Hole and the Mesoamerican Reef.
Philippines
Best months: Jan–Mar · 23–30°C days · some rain (ERA5 climate data)
Tubbataha, Malapascua’s thresher sharks and world-class macro life.
Cozumel, Mexico
Best months: Dec–Feb · 7–23°C days · dry (ERA5 climate data)
Fast, fun drift dives on healthy Caribbean reefs.
Sipadan, Malaysia
Best months: Jan–Mar · 24–32°C days · rainy (ERA5 climate data)
Turtles, barracuda tornadoes and a wall dropping into the deep.
How to choose
Beginners should start in the Red Sea, Cozumel or the Philippines; advanced divers chasing big animals want the Galápagos, Palau or Sipadan. Check the seasons — manta and whale-shark sightings are seasonal in the Maldives and elsewhere.
Related travel guides
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Every destination here is chosen from first-hand visits and independent research — Packzup runs no sponsorships or paid placements.