Scuba Diving at The Ridge Holes: 10-22Mts.

Diving atThe Ridge Holes: 10-22Mts. (Ireland)

Descending into the cool Atlantic waters off Ireland's Dingle Peninsula, divers discover The Ridge Holes, a site characterized by dramatic underwater topography. Large, round, deep holes are carved into a prominent ridge, inviting exploration of intricate reef and wall formations. Exploration promises visual interest from the moment you drop, offering glimpses into crevices and ledges that shelter diverse marine life. Depths range from 10 m / 33 ft to 22 m / 72 ft.

Tonight's objective overview for The Ridge Holes: 10-22Mts. shows an air temperature of 13.5°C. The measured surface conditions include wave heights around 1.5 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 Typesalt
Dive Types
ReefWall

Dive Site Overview

Carved into a prominent underwater ridge, the distinctive large, round deep holes at The Ridge Holes define a truly unique topography. These geological formations present an engaging underwater landscape, providing extensive opportunities for both reef and wall diving experiences.

Divers explore around these natural depressions, observing how they form sheltered pockets and intricate microhabitats within the Atlantic environment. The site's depth profile extends from 10 m / 33 ft down to 22 m / 72 ft, making it accessible to a range of certified divers, though navigating the deeper sections or through some of the more complex passages demands adequate experience and skill. These intricate rock structures are not merely visually spectacular; they actively conceal and host a vibrant array of marine life, blending dramatic geology with active ecosystems.

Each descent reveals new details within its complex contours, fostering a continuous sense of discovery. As divers drift or swim along the ridge, examining its numerous nooks and crannies, there’s a tangible connection to the ocean's enduring power and its ability to sculpt such remarkable underwater architecture.

The Ridge Holes: 10-22Mts.

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
14° / 14°
Wave Height
1.4 m
Wind Speed
26 km/h ESE
Rain Chance
0%

Current conditions near The Ridge Holes: 10-22Mts. show 14° air, 14° sea temperature, 1.4 m waves, and 26 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Jun 13, 2026, 18:41 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Optimizing conditions for visibility at The Ridge Holes often means planning for the calmer months. Typically, late spring through early autumn, specifically May to August, presents the most favorable window. During this period, average wave heights are at their lowest, around 1.5-1.9 m / 5-6 ft, compared to winter months which can exceed 3.5 m / 11 ft. Lower wave action directly contributes to clearer water, enhancing the ability to appreciate the site's intricate topography. Air temperatures during these months are also more comfortable, ranging from 13-16°C / 55-61°F, which makes surface intervals more pleasant. Rain averages are also lower, though rainfall is always a possibility in this region. Wind speeds decrease significantly from May onwards, dropping to around 22-27 km/h / 14-17 mph, further reducing surface chop and improving overall dive experience. While conditions can vary, aiming for this timeframe generally yields the best chance for rewarding dives.

PEAK SEASON SCORE

55/100
Moderate

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


BEST MONTHS TO DIVE

MAY
JUN
JUL
DIVE SCORE
(0–100)
25
JAN
24
FEB
27
MAR
44
APR
55
MAY
54
JUN
55
JUL
46
AUG
41
SEP
37
OCT
27
NOV
24
DEC
AIR TEMP (°C)
6
8
9
10
13
15
15
16
14
13
10
9
WAVES (M)
2.9
3.2
2.8
1.9
1.6
1.6
1.6
2.0
2.1
2.3
2.7
3.6
WIND (KM/H)
31
33
30
26
22
25
25
28
27
27
30
35
RAIN (MM)
4.8
5.9
4.7
3.6
2.6
4.1
5.2
4.6
4.5
4.7
6.4
5.5
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

The Atlantic water environment at The Ridge Holes delivers a visceral encounter with Ireland's rugged underwater. Even in summer months, the water feels distinctly cool. Visibility here can fluctuate significantly, directly influenced by recent weather and ocean swell. On clearer days, intricate details of rock formations and diverse life within the holes become strikingly apparent, allowing for detailed observation of crawfish or spiny spider crabs tucked into crevices. When conditions are less favorable, divers experience a more intimate, close-up exploration, focusing on immediate surroundings. Current can be a factor, sometimes creating a drift dive experience along the ridge, which adds an element of dynamic movement. This isn't a tropical reef; it's a dive into a vibrant, cooler water ecosystem demanding robustness and adaptability from the diver. Constant interaction with rock formations creates a sense of being part of the underwater landscape.

Dive Difficulty & Safety Guidelines

Given the variable conditions and potentially strong currents, divers approaching The Ridge Holes should prioritize thorough dive planning. Although no specific hazards are consistently reported, Atlantic environments necessitate vigilance. Sudden changes in weather can impact sea state and visibility, making it crucial to assess conditions before entry. Always dive within your certification limits and consider your buddy's experience level. Navigation can be challenging if visibility drops, so understanding basic compass and natural navigation techniques is beneficial. Consulting local dive professionals is always advisable for current site behavior knowledge and up-to-date guidance on prevailing conditions.

Recommended Equipment

  • Dive Computer

This gear list is based on verified equipment signals for The Ridge Holes: 10-22Mts., Ireland. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

Forecast trends indicate little change in overall diving conditions during the next few days.

Two divers in the same water temperature may experience very different comfort levels. Surface intervals may feel noticeably cooler once you exit the water.

Many divers find that 7mm wetsuit or semidry offers the right level of insulation for conditions like these. A hood or vest is suggested for sensitive divers due to surface winds. A thermal robe or jacket is recommended between dives. Divers preparing to enter the water at The Ridge Holes: 10-22Mts. will likely find temperatures around 14°C (58°F) today. Surface air temperatures are resting at 14°C (56°F).

The Ridge Holes: 10-22Mts. conditions last reviewed: 18:41 local time (UTC-1), Jun 13, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to THE RIDGE HOLES: 10-22mts..

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.

+

National Hyperbaric Medicine Unit at University Hospital Galway

ICU Capable
Galway, Ireland•Approx. 124 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
University Hospital Galway
24/7 Listed
Unknown

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 Ireland

Marine Life at The Ridge Holes: 10-22Mts.

Active habitat areas within the 'deep holes' particularly distinguish The Ridge Holes. These crevices and overhangs often shelter crawfish and spiny spider crabs, offering close-up encounters for observant divers. Beyond these resident crustaceans, the site's rich rock formations attract a variety of fish. While sightings vary greatly depending on season and prevailing conditions, the area can also host larger pelagic species. Occasional encounters with sharks, whales, dolphins, and turtles have been reported. Patience and keen observation often reveal the vibrant diversity residing within and around rocky structures.

Image contributors:Georgina Jones
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Dive Centers Near The Ridge Holes: 10-22Mts.

Waterworld Dive Centre
3.4 km away

Waterworld Dive Centre

4.9| 31 reviews
Today: 09:00 - 21:00
Sun09:00 - 21:00
Mon09:00 - 21:00
Tue09:00 - 21:00
Wed09:00 - 21:00
Thu09:00 - 21:00
Fri09:00 - 21:00
Sat09:00 - 21:00

Nearest Airports

Nearest airports to help plan travel to this dive area.

Kerry AirportKIR
40 km
Shannon AirportSNN
87 km
Cork International AirportORK
121 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 are The Ridge Holes?

The Ridge Holes is a unique dive site off Ireland's Dingle Peninsula, characterized by large, deep, round holes carved into a prominent underwater ridge. It's known for its dramatic rock formations and offers both reef and wall diving experiences.

What is the typical depth range at this site?

Dives at The Ridge Holes typically range from 10 m / 33 ft down to 22 m / 72 ft. This depth profile allows for dives suitable for various certified diver levels.

What kind of marine life can I expect to see?

The site is particularly noted for crawfish and spiny spider crabs, often found sheltering within the holes. Various fish species are also commonly seen, and occasional sightings of sharks, whales, dolphins, and turtles have been reported in the broader area.

When is the best time of year to dive The Ridge Holes?

The most favorable conditions, particularly for visibility, are generally from late spring through early autumn, typically May to August. During this period, wave heights are usually lower, and air temperatures are more comfortable for surface intervals.

What are the usual water conditions at The Ridge Holes?

Water conditions, especially visibility, can vary significantly with recent weather and ocean swell. Currents can be present, sometimes leading to drift diving opportunities. The water is generally cool due to its Atlantic location.

Is The Ridge Holes suitable for beginner divers?

While the depth range can accommodate various certifications, the variable conditions, including potential currents and colder water, suggest it's more suitable for divers with some experience. New divers should prioritize guidance from a local dive center familiar with the site.

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