5-20m
    North Sea Coast, Denmark
    Ålborg Bay, Randers Fjord and Mariager Fjord

    Als Rev

    Best months: Jul–Aug

    Protected Area

    Ålborg Bay, Randers Fjord and Mariager Fjord

    Why dive here

    With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - Als Rev offers some of North Sea Coast's richest reef diving. Water ranges 3-19°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeSeals & Sea Lions, Sea Turtles and Jellyfish Lake · 95+ species recorded
    Water3-19°C · warmest July, August, September
    CharacterReef dive · max 5-20m

    Als Rev sits off Denmark’s North Sea coast, a surprisingly vibrant spot given the cooler northern waters. We’ve found the anemones here particularly striking, especially the North Sea Tube Anemone, which really adds a splash of colour to the deeper sections. Keep an eye out for the Common Eider ducks diving from above, sometimes you can even spot them from below as they hunt for mussels. It's a good pick for those who appreciate temperate water diving and want to see a different kind of reef ecosystem.

    Typical Als Rev Dive Profile

    5mSafety Stop0m5m 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

    Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today06:4317:2910h 47m daylightGolden hour 16:37

    Nearest Dive Centres to Als Rev

    Dive shops near Als Rev

    View all dive centres in North Sea Coast

    Reviews for Als Rev

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for Als Rev

    Als Rev Ocean Conditions

    Monthly averages for Als Rev, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    13°C

    56°F · Range: 10.7–16.8°C

    Air Temperature

    11°C

    52°F

    Wind Speed

    7.69 m/s

    14.9 knots

    Atmospheric Pressure

    1010.5 hPa

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

    Plan & book

    Ways to dive North Sea Coast, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in North Sea Coast

    Places to stay

    via Booking.com

    Hotels and dive resorts near North Sea Coast.

    Search stays in North Sea Coast

    Dive insurance

    Most travel insurance excludes or limits scuba. Check what you need before you go.

    Dive insurance explained

    Partner links: we may earn a commission if you book, at no extra cost to you. How we make money

    Where to Stay near Als Rev

    Prices from Booking.com. We may earn a commission at no extra cost to you.

    Back to North Sea Coast