21m
    Beginner
    Dumaguete, Philippines
    Takbal-Bato Marine Sanctuary

    Olang Sanctuary

    Best months: Jan–Mar

    Protected Area

    Takbal-Bato Marine Sanctuary

    Why dive here

    With 496+ marine species recorded in the area - including barracuda, blacktip reef sharks, blue-spotted stingrays, bull sharks and octopuses - Olang Sanctuary offers some of Dumaguete's richest reef diving. Water ranges 28-30°C, warmest June, July, October.

    Best timeJan–Mar
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Blacktip Reef Sharks, Blue-Spotted Stingrays, Bull Sharks and Octopuses · 496+ species recorded
    Water28-30°C · warmest June, July, October
    CharacterReef dive · max 21m
    StandoutExceptional marine biodiversity

    Olang Sanctuary is a mellow reef site just off Dumaguete, perfect for a relaxed dive. We’ve always found it a good spot to ease back into things, especially if you haven't been in the water for a bit. The reef here, topping out at 21m, is an easy depth for beginners or anyone looking for a longer bottom time. You’ll drift past patches of hard corals and anemones, with plenty of small reef fish flitting about. It’s a comfortable, unchallenging dive, and a nice way to spend an hour underwater.

    Typical Olang Sanctuary Dive Profile

    10m20mSafety Stop0m21m max~30 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

    Depth of 21m - Advanced Open Water certification recommended.

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

    Today05:3417:3211h 58m daylightGolden hour 17:04

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    Conditions

    Ocean conditions, forecast and tides for Olang Sanctuary

    Olang Sanctuary Ocean Conditions

    Monthly averages for Olang Sanctuary, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (9.23, 123.47) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29–31.3°C

    Air Temperature

    27°C

    81°F

    Wind Speed

    4.36 m/s

    8.5 knots

    Atmospheric Pressure

    1009.6 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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