Thassos Marble Wall
Dive site
Northern Thassos presents a wall of white and grey marble that plunges from 2 metres at the surface to a sandy bottom at 28 metres — a geological spectacle unique among Aegean dive sites. The marble face is smooth at depth but fractured in the upper 10 metres by freshwater infiltration fissures that create vertical channels colonised by sponges and gorgonians. The clarity of the water here reaches 30 metres on calm days, allowing divers to see the full wall extent in a single view. Large dentex (Dentex dentex) patrol the wall base, and the mix of white marble and blue water creates a visual starkness that underwater photographers find exceptional. Best in July and August when northerly winds are calm and visibility is at its peak.
Conditions
Depth
2 to 30 m
Open water and up
Current
Usually gentle
Can pick up on the edge
Visibility
24 to 30 m
Clearest in the calm season
Water
11 to 28°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 12 | 11 | 12 | 14 | 17 | 21 | 24 | 25 | 23 | 19 | 15 | 12 |
| Vis (m) | 12 | 12 | 14 | 18 | 22 | 24 | 25 | 25 | 22 | 18 | 14 | 12 |
| Current | Moderate | Moderate | Moderate | Gentle | Gentle | Gentle | calm | calm | Gentle | Gentle | Moderate | Moderate |
Your chances of seeing each animal
Common dentex
Sometimes
About 1 in 3 dives
Dusky grouper
Photo: Billy Bensted-Smith · CC BY-NC
Sometimes
About 1 in 3 dives
Mediterranean moray
Photo: frahome · CC BY-NC
Sometimes
About 1 in 3 dives
Common two-banded sea bream
Photo: Philippe Guillaume · CC BY
Sometimes
About 1 in 3 dives
Field journal
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