Scuba Diving at SAN Martin SUR

Diving at SAN Martin SUR (Spain)

A prominent cape wall at San Martín Sur guides divers on a step-by-step underwater journey. Initial descent leads to a first level at 5 m, with subsequent steps at 8 m, 14 m, and finally a maximum of 18 m (59 ft). Guiding exploration of Mediterranean marine life and interesting rock formations, this gradual profile allows for relaxed discovery. Up the wall, a large stone indicates the ascent path.

Starting the day at SAN Martin SUR, the ambient air temperature is recorded at 26°C. Ongoing monitoring shows wave heights measuring 0.4 m. This data represents the current surface conditions for early activities.

Dive Site Location & Key Facts

Max Depth21m / 69ft
Entry Typeboat
Water Typesalt
Dive Types
CavernWall

Dive Site Overview

Exploring San Martín Sur brings divers to a distinctive cape wall, unveiling varied underwater topography with stone corridors and sandy bottoms. Conditions often benefit from its protection against northern winds, which commonly contributes to calmer waters.

A prominent natural tunnel is found near the anchorage and a curve in the cape wall, situated at about 3 m (10 ft) depth. Visible as a direct swim-through, this passage connects San Martín Sur to San Martín Norte, frequently highlighted by captivating natural backlights. Divers navigate along the impressive wall, observing how varying depths accommodate a diverse range of Mediterranean species.

A typical dive reaches a maximum depth of 18 m (59 ft). Geological formations combine with coastal marine encounters, offering an enjoyable experience.

Stone corridors and the wall's structure create rich habitats, consistently attracting smaller creatures and adding visual interest.

Furthermore, interplay of light and shadow along the wall significantly enhances the underwater ambiance, making for a dynamic exploration.

SAN Martin SUR

Conditions are Excellent

9/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.
Best Dive Window

07:00 - 14:00

Optimal conditions expected

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
26° / 29°
Wave Height
0.4 m
Wind Speed
20 km/h NNE
Rain Chance
0%

Current conditions near SAN Martin SUR show 26° air, 29° sea temperature, 0.4 m waves, and 20 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Aug 12, 2026, 02:43 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning a dive at San Martín Sur often aligns with consistent good visibility throughout the year, supported by prevailing conditions. Dive scores consistently rate "Good" (7 or 8) across all months, indicating favorable circumstances for underwater exploration. Air temperatures remain pleasant, ranging from approximately 13°C (55°F) in January to peaks of 27.5°C (82°F) in August. Specific visibility data is not consistently reported, however, the site's sheltered position from northern winds typically supports clearer conditions. Rainfall stays minimal year-round, with average monthly precipitation rarely exceeding 2.6 mm (0.1 inches), which helps prevent runoff that could reduce underwater clarity. Expect clear views of wall formations and marine inhabitants across seasons. Divers can generally anticipate comfortable conditions, both above and below the surface, for most of the year here.

PEAK SEASON SCORE

88/100
Very Good

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


BEST MONTHS TO DIVE

JUN
JUL
AUG
DIVE SCORE
(0–100)
61
JAN
66
FEB
62
MAR
71
APR
79
MAY
88
JUN
88
JUL
89
AUG
88
SEP
82
OCT
74
NOV
71
DEC
AIR TEMP (°C)
13
14
15
17
20
25
27
28
24
21
17
13
WATER TEMP (°C)
15
15
15
16
20
23
27
28
26
23
19
17
WAVES (M)
1.1
0.9
1.1
0.8
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.7
WIND (KM/H)
22
22
22
22
20
20
21
20
18
20
20
19
RAIN (MM)
1.6
0.7
2.6
0.6
1.3
0.5
0.5
0.8
2.2
2.2
0.4
1.7
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

Conditions at San Martín Sur accommodate a broad range of certified divers, from Open Water to more experienced levels. A progressive step descent, moving from an initial 5 meters to a maximum depth of 18 meters, provides a manageable exploration profile. Generally considered a dive without significant difficulty, it's approachable for a relaxed underwater experience. Water temperatures, not consistently reported, usually reflect Mediterranean seasonal changes. Wave heights remain generally low, averaging around 0.7 to 1.1 m (2-3.6 ft) throughout the year, suggesting calm surface conditions. Wind speeds typically range from 18 to 22 km/h (11-14 mph). These factors, paired with the site's natural shelter from northern winds, contribute to an overall comfortable and engaging dive. With a visible entrance and exit, a tunnel swim-through adds an element of adventure without complex navigation.

Dive Difficulty & Safety Guidelines

Ensuring safety at San Martín Sur, while generally considered a relaxed dive, requires standard equipment checks and consistent buoyancy control. Maintain extra vigilance near the cape wall and when navigating the tunnel. Naturally sheltered from northern winds, the site typically offers calmer water conditions and reduced surge.

Localized currents or minor swell can still occur, however, varying with specific weather patterns. Unique hazards are not explicitly reported for this site.

When exploring the tunnel, ensure adequate illumination; though backlights are suggested, natural light often suffices. Respecting the marine environment is crucial; avoid disturbing local flora and fauna. Planning your dive with a local guide or dive center will always enhance both safety and enjoyment.

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 SAN Martin SUR, Spain. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

A warming trend is expected over the next few days. A warming trend is expected over the next few days.

Factors such as dive duration, depth, and activity level can influence how warm a diver feels underwater.

2-3mm shorty or light wetsuit typically balances flexibility and thermal protection in these temperatures. Divers preparing to enter the water at SAN Martin SUR will likely find temperatures around 29°C (83°F) today. Surface air temperatures are resting at 26°C (79°F).

SAN Martin SUR conditions last reviewed: 02:43 local time (UTC+0), Aug 12, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to SAN MARTIN SUR.

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.

+

Unidad Hiperbarica Hospital de Castellon UTH-HGUCS

24/7 ListedICU Capable
Castellon, Spain•Approx. 139 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
Hospital General Universitario de Castellon
Emergency Phone
+34 964725000
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 Spain

Marine Life at SAN Martin SUR

Marine life at San Martín Sur offers encounters with common Mediterranean inhabitants. Upon entering the water, divers often notice various species of sea bass and bream moving along the wall and sandy patches.

Starfish are observable clinging to rocks, adding vibrant touches to the underwater landscape. Castanets also frequently dart among rock formations.

Furthermore, divers might spot sea urchins dotting the seabed and, with a keen eye, discover octopus camouflaged within rocky crevices. Diverse topography, featuring stone corridors and sandy bottoms, supports this array of marine life, ensuring an engaging observation experience.

Image contributors:Tim Van Vliet, Nick Hobgood
Want to contribute photos or local dive knowledge? Learn how to contribute

Dive Centers Near SAN Martin SUR

Diving Javea
1.9 km away
4.9| 379 reviews
Mardays
4.8| 399 reviews
3.2 km
Les Basetes Diving Center
4.9| 689 reviews
16.7 km
Scorpora Diving
4.6| 45 reviews
32.7 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

Alicante-Elche Miguel Hernández AirportALC
87 km
Ibiza AirportIBZ
101 km
Valencia AirportVLC
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

Is San Martín Sur suitable for beginner divers?

Yes, this site is generally considered suitable for Open Water divers. Its step-wise descent to a maximum of 18 m (59 ft) and lack of extreme hazards make it accessible and enjoyable for those with basic certification.

What is the maximum depth at San Martín Sur?

San Martín Sur's maximum depth is 18 m (59 ft). Dive follows a stepped profile, with stops at 5 m (16 ft), 8 m (26 ft), and 14 m (46 ft) before reaching its deepest point.

Are there any swim-throughs or tunnels at this site?

Yes, there is a visible tunnel at approximately 3 m (10 ft) depth. It allows passage between San Martín Sur and San Martín Norte and often presents compelling backlight effects for divers.

What kind of marine life can I expect to see?

Divers frequently encounter Mediterranean species such as sea bass, bream, castanets, starfish, sea urchins, and octopus. Varied topography supports a good mix of these common inhabitants.

Is San Martín Sur sheltered from strong winds?

San Martín Sur is specifically noted for being sheltered from northern winds. Its natural protection generally contributes to calmer surface conditions, making boat entries and exits more comfortable.

What are the typical water conditions like?

While specific water temperatures are not consistently reported, the site generally experiences low wave heights and moderate wind speeds. These conditions, along with its sheltered location, typically contribute to a comfortable dive.

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