A defined area in Poros harbour is closed to anchoring and certain forms of mooring until 31 October 2026. The important point for crews is precision: this is not a general anchoring ban for all of Poros, but a polygon in the harbour area set out in Decision 06/2026 by the Poros Port Authority.
The decision was published in the Greek Government Gazette, FEK B 2370, on 27 April 2026. It applies to all vessels, regardless of flag.
Within the defined area, anchoring is prohibited. The decision also prohibits laying any type of anchoring, mooring or fastening point, and making fast to fixed or non-fixed points along the shoreline. For visiting crews, this mainly affects arrival planning, waiting areas and the habit of relying on older local routines.
The defined area
The decision defines the area by a line connecting the following WGS84 positions:
A 37°30'16.54"N 23°27'12.45"E
B 37°30'17.27"N 23°27'04.96"E
C 37°30'05.06"N 23°26'43.44"E
D 37°29'58.87"N 23°26'51.02"E
E 37°30'09.58"N 23°27'13.20"EThese positions are the key detail. The useful planning question is not simply “Poros yes or no?”, but whether the intended anchoring, waiting or mooring position lies inside or close to this defined harbour area.
What crews should check
- Is the intended anchoring, waiting or mooring position inside or close to the defined area?
- Has the Poros Port Authority, marina or a local authority published updated guidance?
- Are the plotter, chart and pilot-book notes current enough for this harbour call?
- Does the intended berth or waiting position work with ferry and excursion-boat traffic?
- Which alternatives are ready if the preferred area cannot be used?
Practical meaning
For crews, this notice matters most on arrival, while waiting for a berth, during short stops and when choosing an overnight position. Poros remains a usable cruising stop, but the harbour area should be approached with current information rather than habit alone.
That is especially relevant in the main season. Popular Saronic ports fill quickly, and crews often fall back on familiar options. In this case, the current port decision is more useful than older notes or remembered practice.
In short
Poros is not closed as a whole. A defined harbour area is affected. Until and including 31 October 2026, crews should not anchor there, lay fastening or mooring points, or make fast to the shoreline within the defined area. Check current harbour information and the official coordinates before entering.
Sources and status
The primary source is Decision 06/2026, published in FEK B 2370 on 27 April 2026. The Hellenic Coast Guard / Poros Port Authority notice provides the public operational summary. Status of this cruising news item: 3 June 2026.