Scuba Diving at Graviera/ Frouros

Diving atGraviera/ Frouros (Greece)

Graviera/Frouros welcomes a broad spectrum of certified divers, from Open Water to Advanced, seeking an engaging reef exploration. Its underwater topography, featuring distinct canyons and caverns, provides diverse pathways for discovery. With a maximum depth of 18 m (60 ft), the site offers an accessible yet stimulating experience that appeals to various skill levels. It's recognized as a popular choice on Naxos for its unique formations.

Tonight's objective overview for Graviera/ Frouros shows an air temperature of 20.5°C. The measured surface conditions include wave heights around 1 m. This environmental data is logged for the close of the day.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Max Depth--
Entry Type--
Water Type--
Dive Types
Reef

Dive Site Overview

Graviera reef, a favored location in the Aegean Islands, shows the effects of millennia of dynamic geological forces. Its structure features intriguing small tunnels, pronounced canyons, and hidden caverns, reflecting natural sculpting processes on Naxos.

More than a simple reef, it's an intricate labyrinth. Divers navigate through these natural formations, where topography presents clear swim-throughs and expansive sections opening into larger spaces. A gradual slope begins shallower, extending to a maximum depth of 18 m (60 ft).

Graviera/Frouros's consistent offering of diverse underwater landscapes and active marine life sightings has solidified its reputation. Proximity to Nima Dive Center makes it a convenient, frequently visited spot.

It appeals to divers seeking both structural complexity and biological richness, interested in geological features combined with active marine encounters. Many dives here involve careful exploration of rock formations, yielding new discoveries around every bend. Interplay of light and shadow within its various nooks adds to the immersive experience.

Graviera/ Frouros

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° / 22°
Wave Height
1.0 m
Wind Speed
37 km/h N
Rain Chance
0%

Current conditions near Graviera/ Frouros show 21° air, 22° sea temperature, 1.0 m waves, and 37 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 14, 2026, 02:22 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning your dive at Graviera/Frouros for optimal comfort and visibility significantly enhances the experience. The most favorable conditions typically span from May through October, aligning with consistently warm air temperatures that average between 20°C (68°F) and 28°C (82°F). During these months, wave heights are generally lower, contributing to calmer surface conditions and more pleasant boat rides; rainfall is minimal. Water temperatures during this peak period are comfortably warm, ranging from 22-27°C (72-81°F). These stable conditions lead to excellent underwater visibility, often exceeding 20 m (65 ft), making for clear exploration of the reef's intricate features. Even the shoulder seasons, such as March, April, and November, present good diving opportunities. Air temperatures during these months remain quite pleasant, often above 14°C (57°F), while water temperatures might be a few degrees cooler, usually around 18-20°C (64-68°F), potentially requiring a thicker wetsuit. Dive scores remain consistently good throughout the year, but the warmest water and calmest seas are reliably found in the summer and early autumn.

PEAK SEASON SCORE

82/100
Very Good

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


BEST MONTHS TO DIVE

MAY
JUN
AUG
DIVE SCORE
(0–100)
64
JAN
65
FEB
73
MAR
76
APR
82
MAY
83
JUN
81
JUL
82
AUG
81
SEP
82
OCT
74
NOV
71
DEC
AIR TEMP (°C)
13
13
15
17
20
26
29
27
25
21
18
15
WAVES (M)
1.0
1.0
0.8
0.7
0.6
0.7
0.7
0.7
0.8
0.7
0.8
0.9
WIND (KM/H)
27
27
24
23
22
25
26
24
25
21
24
23
RAIN (MM)
2.2
2.5
1.1
1.1
0.7
0.2
0.1
0.0
0.4
0.8
1.9
2.6
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

Descending into Graviera/Frouros brings divers into a captivating reef system, where topographical features progressively deepen. Exploration typically starts at approximately 12 m (40 ft), guiding divers comfortably to a maximum depth of 18 m (60 ft). Such a depth range suits Open Water certified divers, providing ample opportunity without significant challenges. A particular draw is navigating small tunnels and exploring impressive canyons and intriguing caverns. Excellent buoyancy control proves essential, especially when maneuvering narrower passages. While often a calm reef environment, occasional currents aren't consistently reported; conditions vary with local weather, stronger winds sometimes influence surface chop and underwater movement. Visibility usually remains very good, frequently exceeding 15 m (50 ft), especially during calm summer months. Water temperatures from 22-27°C (72-81°F) in peak season ensure comfortable diving.

Dive Difficulty & Safety Guidelines

Graviera/Frouros is suitable for divers holding a Scuba Diver certification or higher, including both Open Water and Advanced divers. It's crucial for every diver to adhere to their individual training and experience levels when exploring this site. Navigating the tunnels and caverns requires good buoyancy control and a keen awareness of your surroundings. While the site does not have any consistently reported specific major hazards, divers should always perform thorough gear checks, monitor air supply and bottom time, and follow all standard safe diving practices. Local dive guides are invaluable for providing current briefings and site-specific guidance.

Recommended Equipment

  • Dive Computer

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

Recommended Dive Suit

Thermal protection such as 3-5mm wetsuit is commonly used for water temperatures in this range. Consider warmer surface protection (like a boat coat) due to brisk winds. Surface intervals may feel cooler.

Current readings at Graviera/ Frouros show water temperatures near 22°C (72°F). Surface air temperatures are resting at 21°C (69°F).

Environmental models indicate a modest warming trend ahead. A warming trend is expected over the next few days.

Graviera/ Frouros conditions last reviewed: 02:22 local time (UTC+2), Jun 14, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to Graviera/ Frouros.

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.

+

MYO

24/7 Listed
Kalymnos Island, Greece•Approx. 146 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
"Vouvaleion" General Hospital of Kalymnos
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

MKYI/NNA (DHDM/ANH)

24/7 ListedICU Capable
Athens, Greece•Approx. 171 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
Yes
Fully equipped ICU on-site
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Athens Naval Hospital
Emergency Phone
07:00 - 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

YKIA

Athens, Greece•Approx. 172 km straight-line
Facility Details
Operating Hours
Not listed
ICU Capable
No
Chamber Type
Multi
Multi chamber facility
Facility / Hospital
Metropolitan Hospital
Emergency Phone
12:00 - 20:00
24/7 Emergency Contact
24/7 Listed
No

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 Graviera/ Frouros

The Graviera/Frouros reef serves as a vibrant habitat, offering numerous opportunities for observing diverse marine species. Divers frequently spot octopuses expertly camouflaged among the rock formations, along with the graceful, sinuous movements of moray eels emerging from their crevices. Nudibranchs are a notable highlight, particularly the distinctive Peltodoris atromaculata, often referred to as the sea cow nudibranch, which adds striking color to the reef. Schools of barracuda are also commonly sighted patrolling the more open and deeper sections of the site.

Dive Centers Near Graviera/ Frouros

Cycladic Diving Paros
21.7 km away

Cycladic Diving Paros

5| 217 reviews
Today: 09:00 - 14:00
Sun09:00 - 14:00
Mon08:00 - 19:00
Tue08:00 - 19:00
Wed08:00 - 19:00
Thu08:00 - 19:00
Fri08:00 - 19:00
Sat08:00 - 19:00
Blue Island Divers

Blue Island Divers

5| 89 reviews
24 km
Mykonos Diving Center

Mykonos Diving Center

4.9| 314 reviews
34.7 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

Mykonos Island National AirportJMK
37 km
Santorini International AirportJTR
79 km
Samos AirportSMI
154 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 is the maximum depth at Graviera/Frouros?

Maximum depth at Graviera/Frouros is 18 m (60 ft), suitable for Open Water certified divers and beyond. Reef formations begin around 12 m (40 ft).

What kind of marine life can I expect to see?

Divers often encounter octopuses, moray eels, and schools of barracuda. A notable highlight is the nudibranch population, including the distinctive Peltodoris atromaculata, or sea cow.

What diving experience is required for this site?

Graviera/Frouros welcomes divers with a Scuba Diver certification or higher. Open Water and Advanced divers will find the site engaging and accessible.

Are there any unique topographical features at Graviera/Frouros?

Yes, Graviera/Frouros is known for interesting reef formations, including small tunnels, canyons, and caverns that divers can explore. Such intricate structures add to the dive's appeal.

What are the typical dive times at this site?

A typical dive at Graviera/Frouros lasts approximately 45-50 minutes, providing ample time to explore reef features and observe marine inhabitants.

When is the best time of year to dive Graviera/Frouros?

Peak season for diving generally runs from May to October, offering the warmest air temperatures and calmest conditions. Good diving is also available in shoulder months, with favorable dive scores reported almost year-round.

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