100
    Dahab, Egypt
    محمية نبق

    Blue Hole

    Best months: May–Dec

    Protected Area

    محمية نبق

    Why dive here

    Blue Hole is a cenote dive where divers can encounter dolphins, spinner dolphins and whale sharks. Water ranges 21-28°C, warmest July, August, September.

    Marine lifeDolphins, Spinner Dolphins and Whale Sharks
    Water21-28°C · warmest July, August, September
    CharacterCenote dive · max 100

    The Blue Hole, just north of Dahab, is more than a big sinkhole, it's a rite of passage for many Red Sea divers. You start with an easy entry from the shore, finning over a shallow reef teeming with fusiliers before descending into the deep blue abyss. The dramatic vertical walls drop to 100 meters, creating an almost cathedral-like feel, and you’ll often spot Indian Ocean bottlenose dolphins cruising the edges. We like to cross the saddle, a shallow coral garden that connects the hole to the open sea, before re-entering the main cavern. Keep an eye out for the African eel blennies darting into crevices and the occasional Crown of Thorns starfish clinging to the coral. It’s a site that suits those comfortable with depth and a bit of open water exposure.

    Typical Blue Hole Dive Profile

    15m30m45m60m75m90m105mSafety Stop0m100m max~15 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Maximum depth 100m exceeds recreational limits (40m). Technical diving certification and equipment required.

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:1718:1412h 57m daylightGolden hour 17:42

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    Conditions

    Ocean conditions, forecast and tides for Blue Hole

    Blue Hole Ocean Conditions

    Monthly averages for Blue Hole, sourced from Copernicus Marine satellite data

    August Averages

    Sea Temperature

    27.93°C

    82°F

    Current Speed

    3 cm/s

    Direction: S (180°)

    Chlorophyll-a

    0.065 mg/m³

    Very clear (oligotrophic)

    Salinity

    38.77 PSU

    Data sources: Copernicus Marine Service (EU)

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