12m
    Algarve & Berlengas, Portugal
    Estuário do Tejo

    TOLLEN

    Best months: Jun–Oct

    Protected Area

    Estuário do Tejo

    Why dive here

    With 116+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and ocean sunfish (mola mola) - TOLLEN offers some of Algarve & Berlengas's richest wreck diving. Water ranges 15-19°C, warmest June, October, November.

    Best timeJun–Oct
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Blue Whales, Dolphins, Dwarf Minke Whales and Ocean Sunfish (Mola Mola) · 116+ species recorded
    Water15-19°C · warmest June, October, November
    CharacterWreck dive · max 12m
    StandoutRich in charismatic marine life

    The *Tollen* is an absolute beast of a wreck, and we love it for its sheer scale. This cargo ship, all 114 metres of her, lies in just 12 metres of water, making it a fantastic dive for pretty much everyone. We typically drop onto the bow, which is still impressively intact, before working our way along the deck. You’ll see schools of sea bream shimmering in the light, often darting in and out of the hold openings. It’s an easy swim over the cargo sections, where parts of the superstructure are slowly collapsing in on themselves, creating interesting swim-throughs for the more adventurous. Our favourite part is the stern. The propellers are still there, massive and encrusted, and we always find conger eels lurking in the deeper, darker sections of the engine room access points. The *Tollen* has been down since 1980, so it’s completely smothered in life – colourful anemones cling to every surface, and we’ve spotted plenty of nudibranchs if you slow down and look closely. It’s a genuinely impressive wreck dive without the depth demands, perfect for getting a real sense of history beneath the waves.

    Typical TOLLEN Dive Profile

    5m10mSafety Stop0m12m max~60 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

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

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

    Today05:4217:0611h 24m daylightGolden hour 16:30

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    Conditions

    Ocean conditions, forecast and tides for TOLLEN

    TOLLEN Ocean Conditions

    Monthly averages for TOLLEN, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (37.92, -8.81) (40km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    19°C

    65°F · Range: 16.7–20.2°C

    Air Temperature

    18°C

    65°F

    Wind Speed

    8.24 m/s

    16.0 knots

    Atmospheric Pressure

    1017.4 hPa

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

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