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Östermarsfladen

Natural harbour

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Region: Sweden (2153), Stockholm (501), Stockholms skärgård (462), Haninge (99) and Nynäshamn (38)

Östermarsfladen
Östermarsfladen
Östermarsfladen: {"base": "se", "no": "Flere b\u00f8yler.", "se": "Fler bojar.", "en": "More buoys.", "da": "Flere b\u00f8jer."}
Östermarsfladen: Mot NV
Östermarsfladen: Mot SØ.
Östermarsfladen: Mot SV
Satelite image of Östermarsfladen

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Facilities

Available facilities: Toilet, Swimming area.

Updated on 5. Jun 2025. Update facilities.

Mooring

Options for mooring in this harbour: To pier/wharf, Anchoring, Mooring buoy<br>(for easy "anchoring", not to be confused with bouys used in marinas), Towards land.

Updated on 5. Jun 2025. Update mooring.

Descriptions and reviews

ArOp says:

area

maritime qualities

description

Nåtterö is a beautiful island with smooth rocks, beaches, trails, and small roads. It invites you to go on an adventure.

The harbor is a large 'swinging harbor' with space for many boats. According to chart information, there are many cables at the bottom of the bay from military activities. These cables are not marked on the charts. Therefore, the coastal service has laid out a number of buoys for free use. There are many buoys available for those who want to be anchored and some buoys outside wooden jetties and rocks for those who want to moor with the bow towards the land. Some take the chance and anchor with their own anchor. Most who anchor with their own anchor do so in the west of the bay, outside the sandy beaches.

The approach from the Baltic Sea is unproblematic. If you are coming from the west, the northernmost passage is the easiest. Stay in the middle. The shallowest depth is approximately 3.5 meters.

The harbor is well protected, but it is a wide bay. Northern winds will be noticeable.

[translated from Norwegian with AI]

0 x helpful | written on 1. Jul 2026

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Map of Östermarsfladen

Facilities

Available facilities: Toilet, Swimming area.

Updated on 5. Jun 2025. Update facilities.

Mooring

Options for mooring in this harbour: To pier/wharf, Anchoring, Mooring buoy<br>(for easy "anchoring", not to be confused with bouys used in marinas), Towards land.

Updated on 5. Jun 2025. Update mooring.

Wind protection

Protection next night

91 points

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Want to know how the wind score works? Then you should read this explanation.

The wind forecasts come from yr.no (Norwegian Meteorological Institute), and was last updated 2 hours and 10 minutes ago (Friday 10 July 04:29 PM). The next night score shows you the worst hour between 22:00 and 08:00 the next night. We recommend that you check multiple sources for wind forecasts. windy.com is a good website to show larger wind systems.

The safe directions for this harbour was added at 16. Aug 2025. Click here to edit.

Last visits to Östermarsfladen

Wed 08 Jul 2026

IL VENTO [MMSI: 265025550]

Tue 07 Jul 2026

ZARA [MMSI: 265011620]

Mon 06 Jul 2026

ZARA [MMSI: 265011620]

SLANK [MMSI: 265003880]

Sun 28 Jun 2026

FLOR DE LIS [MMSI: 211172520]

The visits are retrieved from AIS data. You can click to see all visiting ships to Östermarsfladen, as well as statistics about the ships that visits

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Contributors

Users that contributed to this page: Pär Almer, Olav Pekeberg, ArOp, Harri and Matthew Farrugia

harbourmaps.com is updated by the boating community. When you add information, a review or pictures to this page you are listed here with the other contributors (we list your user-name, which can be your real name or a pseudonym).

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