Advenway
Advenway
Wreck Çınarlık Square offshore waters, Değirmendere, Gölcük, Kocaeli
The colour shows the step on an official scale (sea: WMO code table 3700, wave height; wind: Beaufort scale); it is not a dive decision. This is an open-sea model; sheltered coves are usually calmer.
Wave height
0 m
Wave period 1.6 s
Wind
6.1 km/h
ENE
Air temperature
17.6°C
Feels like
18.2°C
Humidity
83%
Pressure
1015 hPa
Data: Open-Meteo · These are model forecasts; confirm local conditions with the dive center before you dive.
Numbers are 2023–2025 monthly average water temperatures; colour shows the suggested suit for that month. Tap a month to see the details below. Waves and wind: average of each day’s highest value in that month (Open-Meteo marine model and ERA5); a darker tone means a wavier or windier month for this site. These are open-sea models; sheltered coves are usually calmer.
Hood and gloves recommended.
Typical day: highest wave ~0.3 m, strongest wind ~11 km/h.
2023–2025 average; today’s value is in the current conditions above. Temperature from the sea cell ~13 km away.
Calculate your lead with this suit → Wetsuit thickness chart → My air time at this depth →
5 nearby centres are authorised for nitrox training. See the list →
Centres with a Nitrox specialty registered with the TSSF (checked October 2026). This is a training authorisation; ask the centre about Nitrox fills and rental.
Nitrox depth calculator (MOD) → Flying after diving: at least 12–18 hours (DAN) →
In the Marmara earthquake of 17 August 1999 the shoreline of Çınarlık Square in the Değirmendere neighbourhood sank into the sea; a hotel, the ferry pier, a tea garden and some houses went under. About 180 metres off the shore, over an area lying between 18 and 55 metres, uprooted plane trees, tea-garden umbrellas, street lamps and the remains of counters still stand. It is one of the areas dived today.
Underwater cultural assets are covered by Turkish Law no. 2863. Diving at these sites is done only through authorized dive centers and in line with the published rules.
Distances are in a straight line and some coordinates are approximate; the route by boat is longer.
The TSSF-registered centres closest to this site (within 60 km or in the same province). Distance is a straight line to the centre’s registered address; it does not mean the centre runs dives to this site, so ask the centre. All authorised centres →
40.72136, 29.778272
Open in the full map
Map: © OpenStreetMap contributors
Single source
Based on one source; ask a local dive center before you plan around it.
About the position on the map
The position is at the Çınarlık Square shore level; the sunken area lies about 180 metres offshore. This place carries the trace of a disaster in which 18,373 people lost their lives, and that should be borne in mind during the dive.
See the authorized dive centers and the other dive sites in the same province on one page.
Dive sites and centers in Kocaeli → All dive sites in Turkey →