Scuba Season
Underwater at Passe Houareau
White-Throated Rail confirmed 2 months agoPeak season now

Passe Houareau

Aldabra Atoll · Seychelles

Passe Houareau is the primary channel into Aldabra's vast lagoon, a world-class drift dive where the Indian Ocean's remote, unpolluted waters deliver extraordinary visibility and dense pelagic life. Schools of scalloped hammerheads patrol the channel margins while oceanic manta rays soar through the blue water above pristine coral formations. The remoteness of Aldabra means virtually no diving pressure, and the marine life here exhibits a fearlessness rarely encountered at more accessible destinations.

Conditions

Depth

10 to 40 m

Advanced depths

Current

Often strong

Can pick up on the edge

Visibility

20 to 35 m

Clearest in the calm season

Water

26 to 31°C

3mm wetsuit

Month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Water (°C)262627282827262626272726
Vis (m)202020202020202020202020
CurrentStrongStrongModerateGentleModerateStrongStrongStrongStrongModerateModerateStrong

Your chances of seeing each animal

See all species recorded here →

Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer