1m
    Cornwall & Devon, United Kingdom
    Sinah Common

    ILLYDIA

    Best months: Jul–Sep

    Protected Area

    Sinah Common

    Why dive here

    With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - ILLYDIA offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded
    Water10-18°C · warmest July, August, September
    CharacterWreck dive · max 1m
    StandoutExceptional marine biodiversity

    The Illydia, oh, what a character she is. We’ve bumped into her a few times now, and she always delivers a good dive. She’s a sailing vessel, a wreck with a story, though it’s the way she’s come to rest that makes her special. You’ll find her broken up, but not scattered. Instead, she’s settled into distinct sections, creating these fantastic swim-throughs and sheltered nooks. It’s the structure of her holds that we really love. You can navigate through them, feeling the water surge and pull you gently along, light filtering down from above. Crabs hide in every crevice, and we’ve spotted plenty of blennies darting between the metal plates. The anemones here are particularly striking, often a vibrant orange against the grey steel. For photographers, the way the light plays on the wreck, especially on a sunny day, is a real treat. We’d suggest catching her on an incoming tide; the visibility tends to be at its best then, and the current helps you drift through with ease. She's a perfect dive for those who enjoy exploring tight spaces and appreciate a wreck that feels alive with its resident critters.

    Typical ILLYDIA Dive Profile

    Safety Stop0m1m 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.

    Today06:2117:2311h 2m daylightGolden hour 16:38

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    Conditions

    Ocean conditions, forecast and tides for ILLYDIA

    ILLYDIA Ocean Conditions

    Monthly averages for ILLYDIA, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    17°C

    62°F · Range: 15.1–17.5°C

    Air Temperature

    13°C

    56°F

    Wind Speed

    8.14 m/s

    15.8 knots

    Atmospheric Pressure

    1011 hPa

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

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