Scuba Diving at Merkanti Reef (Divewise House Reef)

Diving at Merkanti Reef (Divewise House Reef) (Malta)

Published

Merkanti Reef, known also as Divewise House Reef, unfolds as a shallow site off St. Julian's, along Malta's northeastern coast. This reef system comprises two distinct sections that run parallel to the shore and to each other. Their tops nearly break the surface, with a marker pole indicating the farther reef line. It offers straightforward access suitable for a range of divers.

Starting the day at Merkanti Reef (Divewise House Reef), the ambient air temperature is recorded at 19.5°C. Ongoing monitoring shows wave heights measuring 2 m. This data represents the current surface conditions for early activities.

Dive Site Location & Key Facts

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

Dive Site Overview

Exploring Merkanti Reef provides an accessible shore experience for divers discovering Malta's underwater world. New divers find this site appealing because of its manageable depth profile, with much exploration occurring within 10-12 metres (33-39 ft).

Qualified divers can extend their exploration, as the reef reaches depths beyond 20 metres (66 ft). Accessing the reef from shore means an entry point located approximately 300 metres away, in a small bay between the Westin Dragonara and Hilton Malta, near Merkanti Beach Club. A substantial surface swim or accurate underwater navigation is required to reach the reef system from shore.

Boat access offers a more direct approach to the dive area, about 150 metres from the nearest coast. Merkanti Reef operates as a less-frequented dive, which promises a quieter experience.

Its dual reef structures run parallel to the coastline, presenting interesting topographical features even in shallower sections. Such relative tranquility supports focused observation of marine life and unhurried movement through the reef.

Divers can benefit from longer bottom times within recreational depth limits due to a gradual slope.

Merkanti Reef (Divewise House Reef)

Conditions are Poor

4/10
Confidence: 8/10
Indicates meteorological model agreement and data availability.
DIVE WARNING

High Swell Advisory. Not recommended.

06:12
18:45
H: 10:45
L: 16:20
Air / Sea Temp
20° / 22°
Wave Height
3.2 m
Wind Speed
41 km/h WNW
Rain Chance
0%

Current conditions near Merkanti Reef (Divewise House Reef) show 20° air, 22° sea temperature, 3.2 m waves, and 41 km/h wind. Forecast data is refreshed regularly to ensure accuracy.

Radius: ~12km
Updated: Nov 3, 2026, 10:32 local time
MARINE: OPEN-METEOWEATHER: YR.NO

Best Time to Dive

Planning a dive at Merkanti Reef is generally favorable during Malta's warmer, calmer months, reflecting the overall 'Good' dive scores from June through October. Air temperatures during this period typically range from 25°C (77°F) in June to 23°C (73°F) in October, peaking at 28.5°C (83°F) in July. Rain is minimal during summer, with July experiencing zero average rainfall and August only 0.18 mm. Wind speeds are also considerably lower, averaging around 18-20 km/h (11-12 mph), resulting in calmer wave heights, often below 1 meter. Conversely, winter months, from November to April, show 'Moderate' dive scores due to cooler air temperatures, higher rainfall, and increased wind and wave activity, potentially affecting shore access and visibility. Water temperatures for this specific site are not consistently reported in available data, but generally follow the seasonal air temperature trends of the region.

PEAK SEASON SCORE

90/100
Excellent

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


BEST MONTHS TO DIVE

JUN
JUL
AUG
DIVE SCORE
(0–100)
54
JAN
55
FEB
60
MAR
62
APR
71
MAY
90
JUN
89
JUL
90
AUG
86
SEP
84
OCT
74
NOV
62
DEC
AIR TEMP (°C)
15
14
16
17
20
25
28
28
26
23
19
16
WATER TEMP (°C)
17
16
16
17
20
24
27
27
27
24
22
19
WAVES (M)
1.7
1.5
1.3
1.2
1.0
0.6
0.7
0.7
0.8
0.9
1.2
1.4
WIND (KM/H)
27
26
26
27
25
19
19
18
20
21
23
25
RAIN (MM)
1.9
1.5
1.0
0.9
1.4
0.2
0.0
0.2
0.9
1.1
1.0
1.6
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

Navigating to Merkanti Reef from shore involves a medium access level, necessitating either a longer surface swim or proficient underwater navigation from the designated entry point. Once underwater, divers encounter the dual reef structures, which provide various features for exploration. The top sections of both reef parts nearly reach the surface, creating natural light interplay. Depths for recreational diving average around 10 metres (33 ft), making it comfortable for extended bottom times. Experienced divers can explore deeper areas, with maximum depths recorded at over 20 metres (66 ft). Conditions, particularly visibility and current, can vary. Surface conditions, including wave height and wind speed, are notably calmer during the summer and early autumn months, which can ease the surface swim component of a shore dive.

Dive Difficulty & Safety Guidelines

Diving Merkanti Reef requires awareness of its specific environmental and logistical considerations. Due to its offshore nature and shore entry requiring a substantial swim, carrying a Delayed Surface Marker Buoy (DSMB) is advisable. This allows you to signal your position to any potential boat traffic, which can occur in this coastal area.

While Merkanti Reef is identified as a beginner-friendly site in terms of depth, understanding and managing your air consumption during the surface swim or underwater navigation phase is crucial. There are many small overhangs and crevices to explore, but divers should maintain proper buoyancy control to avoid damaging delicate marine structures.

Always dive within your certification limits and consider the prevailing weather conditions before embarking on a shore dive.

Recommended Equipment

  • Dive Computer

This gear list is based on verified equipment signals for Merkanti Reef (Divewise House Reef), Malta. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

Individual comfort in the water can vary significantly from diver to diver, even under the same conditions.

For most recreational dives, 3-5mm wetsuit should provide comfortable protection. Strong winds are present; please take strong precautions against rapid cooling during surface intervals. Surface intervals may feel cooler. Forecast conditions over the next few days suggest temperatures will remain relatively stable.

Current temperature readings suggest that the water at Merkanti Reef (Divewise House Reef) is around 22°C (72°F). Surface air temperatures are resting at 20°C (67°F).

Merkanti Reef (Divewise House Reef) conditions last reviewed: 10:32 local time (UTC+1), Nov 3, 2026

Emergency & Medical Support

Essential information to help you plan your dive trip to Merkanti Reef (Divewise House Reef).

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.

+

Hyperbaric Unit - Mater Dei Hospital

24/7 ListedICU Capable
Msida, Malta•Approx. 4 km straight-line
Facility Details
Operating Hours
7h - 15h
ICU Capable
Yes
Fully equipped ICU on-site
Chamber Type
multiplace
multiplace chamber facility
Facility / Hospital
Mater Dei Hospital
Emergency Phone
112
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

Gozo

24/7 ListedICU Capable
Victoria, Malta•Approx. 26 km straight-line
Facility Details
Operating Hours
24/7
ICU Capable
Yes
Fully equipped ICU on-site
Chamber Type
Multiplace
Multiplace chamber facility
Facility / Hospital
Gozo General Hospital
Emergency Phone
+356 2344 6000 or 112
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 Malta

Marine Life at Merkanti Reef (Divewise House Reef)

The structure of Merkanti Reef itself provides shelter for a diverse range of marine life. Divers exploring the site's two parallel reef sections will discover numerous small overhangs, crevices, and nooks.

These intricate features act as natural havens for various smaller species, making it an engaging site for macro photography or simply observing resident marine organisms. Between the two main reef parts, a 'canyon' further enhances the topographical interest, offering additional concealed spaces where reef inhabitants can be found.

The varying depths and reef formations support a community of typical Mediterranean reef dwellers. Expect to encounter octopuses, moray eels, and various schooling fish within these protected areas.

Dive Centers Near Merkanti Reef (Divewise House Reef)

Starfish Diving Malta
0.6 km away
5| 255 reviews
Today: 08:30 - 16:30
SunClosed
Mon08:30 - 16:30
Tue08:30 - 16:30
Wed08:30 - 16:30
Thu08:30 - 16:30
Fri08:30 - 16:30
Sat08:30 - 16:30
Aida Freediving Malta
5| 93 reviews
4 km
Lagoon Dive Center
5| 44 reviews
1.8 km
Dive Systems Malta
4.9| 632 reviews
0.8 km
Divewise Malta
Divewise Malta
4.8(472)• 0.1 km
Diveshack
Diveshack
4.8(369)• 1.9 km
Dive Site
Dive Site
4.4(10)• 0.6 km
Dive Deep Blue By Abc Diving
Dive Deep Blue By Abc Diving
5(585)• 7.5 km

Things to Do Around Merkanti Reef (Divewise House Reef)

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Nearest Airports

Nearest airports to help plan travel to this dive area.

Malta International AirportMLA
9 km
Comiso AirportCIY
119 km
Lampedusa AirportLMP
176 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 typical depth range for diving Merkanti Reef?

Merkanti Reef is generally considered a shallow dive, with much of the site explorable within 10-12 metres (33-39 ft). For those seeking deeper exploration, the reef does extend to maximum depths over 20 metres (66 ft).

Is Merkanti Reef suitable for beginner divers?

Yes, Merkanti Reef is well-suited for beginner divers due to its shallow average depth and relatively calm conditions. Its 'low popularity' also means less crowding, which can be beneficial for those still gaining experience.

How do you access Merkanti Reef?

Merkanti Reef can be accessed either by boat or as a shore dive. The shore entry point is in a small bay between the Westin Dragonara and Hilton Malta, near Merkanti Beach Club, which requires a notable surface swim or underwater navigation.

What kind of marine life can I expect to see?

Divers can expect to find a variety of marine life within the reef's many small overhangs, crevices, and nooks. These sheltered spots are home to resident reef species typical of the Mediterranean.

Are there any specific safety precautions for this dive site?

It is recommended to carry a Delayed Surface Marker Buoy (DSMB) when diving Merkanti Reef due to potential boat traffic in the area. Being mindful of your air consumption during the surface swim is also important.

What are the best months to dive Merkanti Reef?

The best time to dive Merkanti Reef is typically from June through October. These months offer warmer air temperatures, minimal rainfall, and calmer sea conditions, improving overall dive comfort and accessibility.

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