Alholm Rev
Protected Area
Lynæs
Why dive here
With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - Alholm Rev offers some of North Sea Coast's richest reef diving. Water ranges 3-19°C, warmest July, August, September.
Alholm Rev, for us, is a real surprise package in the often-overlooked Danish North Sea. Forget your tropical blues; here it’s about a different kind of beauty, a rugged, resilient ecosystem thriving in cooler water. We love the sheer density of life clinging to every surface of the reef, like the Hairy Sea-mats creating intricate tapestries, often completely covering the rocks. You'll find yourself searching for the subtle movements of specked sea-louse or admiring the robust architecture of acorn barnacles. It’s an excellent spot for macro enthusiasts, or anyone who appreciates the smaller details. Keep an eye out for the bull rout, often tucked into crevices, and the energetic common shore crabs scuttling about. Conditions can be challenging, so pick your day carefully; calmer seas make all the difference for enjoying the intricate bottom. We’d suggest going at slack tide if you can time it right. You might even catch a glimpse of a harbour porpoise patrolling the deeper sections, a truly special bonus. It’s a site that rewards patience and a keen eye, perfect for divers who prefer quiet observation over big pelagics.
Typical Alholm Rev Dive Profile
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.
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Conditions
Ocean conditions, forecast and tides for Alholm Rev
Alholm Rev Ocean Conditions
Monthly averages for Alholm Rev, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)
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
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