Scuba Diving at Chimney

Diving atChimney (Greece)

Chimney, a dive site in Greece, derives its name from a striking vertical rock formation explorers can navigate. This natural shaft dictates much of the dive's character, presenting both a specific navigational challenge and a memorable visual experience. Its presence marks a distinctive landmark within the region's underwater topography.

Evening condition tracking at Chimney features an air temperature of 20.5°C. We have recorded wave heights measuring 0.9 m during this period. These figures outline the environmental parameters currently present.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth30m / 98ft
Entry Typeboat
Water Typesalt
Dive Types
CaveReefWall

Dive Site Overview

Navigating Chimney reveals a complex underwater topography, immediately striking with the prominent vertical shaft that defines the site. This natural formation serves as the dive's namesake, plunging from a starting depth of 5 meters / 16 feet and extending downwards to roughly 28 meters (92 feet), offering a thrilling, often vertical, descent for appropriately certified divers.

The journey through the chimney itself is a unique experience, a confined passage demanding precise buoyancy and controlled movement as light from above gradually diminishes. Emerging from this central feature, the dive expands into an environment characterized by dramatic steep walls, volcanic canyons, and intricately formed reef structures.

Divers here traverse an array of impressive rock formations, exploring a labyrinth of ledges, overhangs, and swim-throughs that sculpt the underwater landscape. These features create numerous concealed areas and corridors, each demanding attentive navigation and often requiring a dive light to fully appreciate the details and inhabitants within.

Depths across the site are highly varied, transitioning from very shallow sunlit sections along the reef crest to areas that drop significantly beyond 40 meters, revealing different ecosystems. This diverse geological structure ensures that every exploration presents new perspectives, whether tracing the verticality of the chimney or meticulously surveying the contours of the surrounding reef and its hidden corners.

The site's dynamic nature allows for multiple return visits, each uncovering fresh insights into its unique structure.

Chimney

Conditions are Good

7/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.

Best Dive Window

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
21° / 24°
Wave Height
1.0 m
Wind Speed
32 km/h WNW
Rain Chance
0%

Current conditions near Chimney show 21° air, 24° sea temperature, 1.0 m waves, and 32 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 14, 2026, 03:21 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Diving Chimney is generally favorable for much of the year, with optimal conditions frequently aligning with warmer months for comfort and calm seas. Air temperatures span 13°C / 55°F in winter to 28°C / 82°F in summer, impacting surface comfort. Periods from April through November typically offer stable weather, featuring minimal rainfall, averaging under 2mm monthly. During these times, wave heights remain consistently low, often below 0.8 meters / 2.6 feet, aiding clearer visibility and easier boat access. For calm seas and excellent visibility, late spring to early autumn (May-October) is often recommended. Water temperature data isn't consistently reported, but generally ranges between 18-26°C / 64-79°F across the dive season in Greek waters.

PEAK SEASON SCORE

85/100
Very Good

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JUN
JUL
OCT
DIVE SCORE
(0–100)
69
JAN
66
FEB
72
MAR
76
APR
81
MAY
86
JUN
84
JUL
84
AUG
83
SEP
85
OCT
81
NOV
75
DEC
AIR TEMP (°C)
14
13
15
17
20
25
29
28
25
21
18
15
WAVES (M)
1.0
1.1
1.0
0.8
0.7
0.7
0.7
0.7
0.8
0.7
0.8
0.9
WIND (KM/H)
19
21
20
20
20
20
22
22
19
16
17
16
RAIN (MM)
2.5
2.9
1.9
1.7
1.8
0.4
0.0
0.2
0.8
0.2
1.4
2.9
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Dive Experience & Conditions

Water entry at Chimney usually requires a boat, it's not a shore dive. Its primary feature, the chimney itself, demands experienced diving proficiency, particularly for those navigating its vertical shaft. Moderate swell appears occasionally, yet currents generally remain low, assisting controlled maneuvering through intricate structures. Topography here includes narrow passages, swim-throughs, and overhangs, calling for excellent buoyancy control and situational awareness. Divers will explore a range of depths, from relatively shallow sections to deeper areas. Visibility varies but is often good, enhancing discovery of diverse rock formations and colorful marine growth. A dive light becomes essential here for fully appreciating details within darker recesses and the chimney's interior.

Dive Difficulty & Safety Guidelines

Given its intricate structure and the chimney's vertical nature, proper planning and adherence to safety protocols are paramount. The site is recommended for intermediate to experienced divers; specific sections, such as the actual chimney entry, require advanced or cave diving certification due to overhead environments. Excellent buoyancy control proves critical for navigating tight passages and protecting fragile marine life. A dive light isn't merely recommended but essential for illuminating the chimney's interior and other darker features, ensuring clear visibility of surroundings and potential hazards. Divers should always carry redundant light sources. It's advisable to dive with a local guide familiar with the site's specific layout and potential nuances. Monitoring air consumption closely is important, especially when exploring deeper sections or within confined spaces.

Recommended Equipment

Overhead environment. Do not enter beyond training and gas planning limits.

  • Dive Computer
  • DSMB
  • Primary & Backup Lights
  • Reel / Spool
  • Cutting Tool

This gear list is based on verified equipment signals for Chimney, Greece. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

Recent conditions suggest the water at Chimney remains near 24°C (76°F), offering typical conditions for the area. Surface air temperatures are resting at 21°C (69°F).

Forecasts suggest rising temperatures later this week. A warming trend is expected over the next few days.

Most divers would typically feel comfortable using 3mm wetsuit in these conditions. Consider warmer surface protection (like a boat coat) due to brisk winds. Surface intervals may feel cooler. Dive depth and duration can significantly affect perceived warmth. Stronger winds may also make surface intervals feel cooler than usual.

Chimney conditions last reviewed: 03:21 local time (UTC+2), Jun 14, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to Chimney.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN Europe.

+39 0642115685
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Closest Listed Hyperbaric Chambers

Showing listed hyperbaric chamber facilities within 200 km of this dive site. Distances are approximate straight-line distances and may not reflect emergency travel time.

+

TKYI/NNK

24/7 Listed
Chania, Greece•Approx. 82 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Crete Naval Hospital
Emergency Phone
08:00 - 15:00
24/7 Emergency Contact
24/7 Listed
Yes
Listed as 24/7 available facility

Information is provided for reference and planning purposes only. Dive Navigator does not verify operational status, staffing, availability, or quality of care at listed facilities. In an emergency, contact local emergency services, DAN, your dive operator, or the chamber directly. Do not travel to a facility without calling ahead.

SourceEUBS / OXYNET
Chamber data is sourced from self-reported EUBS/OXYNET listings and has not been independently verified by Dive Navigator. Always contact local emergency services, DAN, your dive operator, or the facility directly before travelling.
View all in Greece

Marine Life at Chimney

Rock formations and crevices throughout Chimney provide habitat for diverse marine life, often displaying unexpected vibrancy within cooler, darker sections. Shrimps appear commonly, sheltering within the chimney's numerous nooks and crannies and the surrounding reef. Walls and overhangs are adorned with a remarkable display of soft corals and brightly hued sponges, creating a colorful tapestry where a dive light illuminates. While large pelagics aren't consistently reported, smaller reef fish, such as damselfish and parrotfish, navigate the rocky terrain. Close inspection of ledges and crevices might also reveal various anemones and other invertebrates, showcasing the intricate ecosystem supported by this unique geological structure.

Image contributors:Giacomo Merculiano, Nick Hobgood + 1 more
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Nearest Airports

Nearest airports to help plan travel to this dive area.

Heraklion International Nikos Kazantzakis AirportHER
17 km
Chania International AirportCHQ
80 km
Sitia AirportJSH
101 km
💵Currency:EUR

Search Flights

Check available flights and routes on Expedia, using the nearby airports listed in this section.

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Frequently Asked Questions

What defines Chimney as a dive site?

It's a natural, vertical rock shaft or hole within the reef structure. Divers can enter from above at a shallower depth and exit at a deeper point, giving it the sensation of descending through a chimney.

What depths are explored at Chimney?

The primary chimney structure descends from approximately 5 meters to 28 meters. Beyond this, exploration of surrounding walls and reefs extends to greater depths, often reaching 40 meters / 130 feet.

Is Chimney appropriate for all certified divers?

While parts of the reef are accessible to intermediate divers, navigating the vertical chimney often requires advanced or cave diving certification. Good buoyancy control and experience with overhead environments are essential.

What marine life can I expect to see?

You'll often encounter various shrimps hiding in crevices, alongside vibrant soft corals and sponges adorning the walls. Smaller reef fish are also present, utilizing the complex rock formations for shelter.

Do I need a dive light for this site?

Yes, a dive light is considered essential. It's crucial for illuminating the darker interiors of the chimney and other overhangs, allowing you to appreciate the vibrant colors and detailed rock formations.

What are the typical water temperatures?

Water temperatures for Greece are not consistently reported in available data. However, expect them to generally range between 18-26°C / 64-79°F during the primary dive season, cooler in winter.

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