Greek wreck-hunter solves 1959 mystery

Greek truck cab
Cab of one of the GMC army trucks (ROV Services)

A dive-team have discovered the wreck of a Greek cargo vessel that disappeared 63 years ago, lying at a depth of 87m north-west of the Aegean island of Makronisos.

Also read: Sub-hunter tracks down HMS Triumph off Greece

The 43m Tresi Ierarchai (Three Hierarchs) was a former Hellenic Navy boat. It had sailed from Piraeus on the evening of 13 February, 1959 with a cargo of corn and three GMC 6X6 army trucks, heading to Thessaloniki and Xanthi. The boat sank the following day, after running into a Force 8 storm.

The nine crew died in what was presumed, because no distress signal had been sent, to have been a sudden and rapid sinking. Some flotsam was later found, but the wreck’s resting place had remained a mystery.

Also read: Huge British liner wreck located in Aegean

bow of the wreck
The bow of the 84m-deep Tres Ierarchai (ROV Services)
Hold of the wreck
The hold (ROV Services)

Greek diver and maritime historian Kostas Thoctarides and his team found the Tresi Ierarchai intact and listing 53° to starboard. Exploring the wreck for the first time using an ROV, they reported that the helm had been turned hard to port.

Also read: A deep dive with Kostas Thoctarides

The three military trucks, which would have been supplied as aid to the Greek Army in the early 1950s under the US Truman Plan, were found in the debris field where they had fallen to starboard from the deck.

Since Thoctarides started working as a commercial diver in 1987 he says he has clocked up the equivalent of two full years under water. The former pilot and manager of the manned submersible Thetis, he started the company ROV Services and also the Planet Blue scuba centre, which he runs at Lavrio in Attica, south of Athens.

Makronisos, the biggest uninhabited Greek island and where the Tresi Ierarchai wreck is located, lies only 7km east of Lavrio.

sketch of the wreck
A sketch of the wreck (ROV Services)
Kostas Thoctarides
Wreck-hunter Kostas Thoctarides

Thoctarides, who has previously discovered four other 20th-century shipwrecks off the islands of Mykonos, Skiathos, Kefalonia and in the Saronic Gulf, reckons that some 75% of vessels wrecked in Greek waters have yet to be identified.

In November last year he and his team found the Italian WW2 submarine Jantina off Mykonos. Unusually she had been torpedoed by another submarine, HMS Torbay, in July 1941, with the loss of 42 of her 48 crew. The 61m sub lay at a depth of 103m.

Video footage of the Tresi Ierarchai can be seen below.

YouTube video

Also on Divernet: Greece Offers Scuba Divers 91 Wrecks

@timpell49
#AskMark Mark great video love your content I recently had my cylinder hydro tested it was filled with air how long can you keep the air in the cylinder before you use it .Also dive shop can drain the air and fill with nitrox?
#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear 

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

@timpell49
#AskMark Mark great video love your content I recently had my cylinder hydro tested it was filled with air how long can you keep the air in the cylinder before you use it .Also dive shop can drain the air and fill with nitrox?
#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS41ODI2RjhGOTVBODI2NDE5

How Long Can You Keep Air in a Cylinder? #AskMark #scubadiving

Full List of Dive Shows with Links:
https://divernet.com/scuba-diving/your-worldwide-dive-show-guide-for-2025/

JANUARY 18-26: Boot Düsseldorf (International Boat Show)
FEBRUARY 1-2: Duikvaker 
FEBRUARY 21-23: European Dive Show (EUDI)
FEBRUARY 21-23: Diving Resort Travel (DRT) Show, Malaysia
MARCH 1-2: GO Diving Show (The UK Dive Show)
MARCH 15-16: ADEX Ocean Festival / OZTek Australia
MARCH 28-30: Mediterranean Diving Show 
APRIL 4-6: Asia Dive Expo (ADEX) 
MAY 22-25: Thailand Dive Expo (TDEX)
MAY 31 – JUNE 1: Scuba Show
JUNE 13-15: Malaysia International Dive Expo (MIDE)
SEPTEMBER 6-7: GO Diving ANZ Show
OCTOBER 17-19: Diving Talks 
NOVEMBER 11-14: DEMA Show 

#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear 

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.
00:00 Introduction
01:35 Scuba.com Ad
02:35 Duikvaker
03:15 EUDI
04:23 DRT
05:04 GO Diving Show UK
06:24 ADEX OZTek
07:06 Mediterranean
07:34 ADEX
08:21 TDEX
08:51 Scuba Show
09:36 MIDE
10:06 GO Diving ANZ
11:09 Diving Talks
11:58 DEMA

Full List of Dive Shows with Links:
https://divernet.com/scuba-diving/your-worldwide-dive-show-guide-for-2025/

JANUARY 18-26: Boot Düsseldorf (International Boat Show)
FEBRUARY 1-2: Duikvaker
FEBRUARY 21-23: European Dive Show (EUDI)
FEBRUARY 21-23: Diving Resort Travel (DRT) Show, Malaysia
MARCH 1-2: GO Diving Show (The UK Dive Show)
MARCH 15-16: ADEX Ocean Festival / OZTek Australia
MARCH 28-30: Mediterranean Diving Show
APRIL 4-6: Asia Dive Expo (ADEX)
MAY 22-25: Thailand Dive Expo (TDEX)
MAY 31 – JUNE 1: Scuba Show
JUNE 13-15: Malaysia International Dive Expo (MIDE)
SEPTEMBER 6-7: GO Diving ANZ Show
OCTOBER 17-19: Diving Talks
NOVEMBER 11-14: DEMA Show

#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.
00:00 Introduction
01:35 Scuba.com Ad
02:35 Duikvaker
03:15 EUDI
04:23 DRT
05:04 GO Diving Show UK
06:24 ADEX OZTek
07:06 Mediterranean
07:34 ADEX
08:21 TDEX
08:51 Scuba Show
09:36 MIDE
10:06 GO Diving ANZ
11:09 Diving Talks
11:58 DEMA

YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS43OTNDNTk0OUNGMDA1MUNG

Upcoming Dive Shows in 2025 #scubadiving #diveshow

US diver Barrington Scott has set a verified Guinness World Record for the fastest time to scuba dive across all seven continents.Cartagena City Council says it is preparing to tighten access to the Cueva del Agua (Water Cave) system in southern Spain, following the death of a 37-year-old female diver there on 18 January. And an underwater habitat builder has just extended the record for longest time spent submerged. 

https://divernet.com/scuba-news/scuba-dash-across-7-continents-brings-world-record/
https://divernet.com/scuba-news/health-safety/spanish-cave-divers-death-prompts-calls-for-controls/ 
https://www.kentucky.com/news/nation-world/national/article299289964.html
https://divernet.com/scuba-news/pod-builder-completes-120-days-under-sea/

#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear 

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

US diver Barrington Scott has set a verified Guinness World Record for the fastest time to scuba dive across all seven continents.Cartagena City Council says it is preparing to tighten access to the Cueva del Agua (Water Cave) system in southern Spain, following the death of a 37-year-old female diver there on 18 January. And an underwater habitat builder has just extended the record for longest time spent submerged.

https://divernet.com/scuba-news/scuba-dash-across-7-continents-brings-world-record/
https://divernet.com/scuba-news/health-safety/spanish-cave-divers-death-prompts-calls-for-controls/
https://www.kentucky.com/news/nation-world/national/article299289964.html
https://divernet.com/scuba-news/pod-builder-completes-120-days-under-sea/

#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
FOLLOW US ON SOCIAL MEDIA

FACEBOOK: https://www.facebook.com/scubadivermag
TWITTER: https://twitter.com/scubadivermag
INSTAGRAM: https://www.instagram.com/scubadivermagazine

We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS4yNkZBOTQyMkYxQkQyMzc2

Spanish Cave Closed After Fatality #scuba #podcast #news

LET’S KEEP IN TOUCH!

Get a weekly roundup of all Divernet news and articles Scuba Mask
We don’t spam! Read our privacy policy for more info.
Subscribe
Notify of
guest

0 Comments
Most Voted
Newest Oldest
Inline Feedbacks
View all comments
Recent Comments
Recent News