HMS M28
Protected Area
FENGARI SAMOTHRAKIS, ANATOLIKES AKTES, VRACHONISSIDA ZOURAFA KAI THALASSIA ZONI
Why dive here
HMS M28 is a reef dive where divers can encounter dolphins and sea turtles. Water ranges 15-26°C, warmest July, August, September.
The HMS M28, lying within the protected waters of Alonissos Marine Park, offers a genuinely distinctive dive. We love that it's an M15-class monitor, a proper historical vessel from 1915, not just some scattered debris. Dropping down, the sheer scale of the wreck starts to emerge from the blue. You can make out the gun mounts and the hull’s basic structure, all now draped in a thick carpet of sponges and hydroids. Schools of damselfish shimmer around the superstructure, darting in and out of the shadows. Our favourite time to dive the M28 is in the morning, when the sun is higher, because it really illuminates the upper sections and brings out the colours of the encrusting life. Look closely in the nooks and crannies – we’ve seen moray eels peeking out and sometimes a scorpionfish camouflaged on the deck. It’s a site that rewards a slow, deliberate exploration, perfect for divers who appreciate history blended with healthy marine growth. Just be mindful of the currents, which can pick up at times, especially around the exposed sections of the wreck.
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Conditions
Ocean conditions, forecast and tides for HMS M28
HMS M28 Ocean Conditions
Monthly averages for HMS M28, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (38.09, 24.15) (15km away)
October Averages
Sea Temperature
23°C
73°F · Range: 21–25.6°C
Current Speed
1.41 cm/s
Direction: SW (225°)
Chlorophyll-a
0.13 mg/m³
Clear water
Salinity
34.63 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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