Martijn Haak
Certifications
Experience
| 11 | years |
| 74 | dives |
| 57 h | under water |
| 8 | countries |
| 1 | sighted animals |
Records
| 39 m | Deepest |
| 175 min | Longest |
| 4 ℃ | Coldest |
| 29 ℃ | Warmest |
| 850 m | Highest |
Christian Petrt and Christian Wermter are friends
Dives
+log dive74 Dives
Last dive: Sept. 7, 2025
Marine life
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1 sightings
Photos
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Activity feed
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Christian Petrt joined
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Christian Wermter and Christian Müller are friends
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Christian Müller and Christian Wermter are friends
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Christian Müller joined
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Christian Wermter joined
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Kazuo Yamada logged a new dive
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Kazuo Yamada logged a new dive
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Juan Ignacio Alfieri joined
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Frank Gofers logged 41 new dives
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Markus Wagner joined