Anchorage GuideDodecanese, Greece5nm from Symi (Gialos)

Marathounda Anchorage Guide

Also known as: Μαραθούντα, Marathounta

Marathounda is a beautiful, remote deep inlet on the SE coast of Symi, enclosed by dramatic limestone hills and accessible only by sea or a long walk. The translucent water and single summer taverna give it an away-from-it-all character that is rare in the Dodecanese. The steeply shelving bottom demands careful anchoring — a stern line to shore is best practice. Katabatic mountain gusts can be violent even when the ambient wind is calm, and any southerly development requires immediate departure.

Quick Reference

GPS Coordinates

36°33.8'N 27°50.4'E

Depth

47m

Bottom

sand, rock

Holding

Fair Holding

Protected From

W, NW, N

Exposed To

S, SE, E

Best Months

May, June, September

Anchoring Fee

Free

Permit Required

No

65m

Recommended Anchor Alarm Radius

65m; the steeply shelving bottom reduces effective scope and holding reliability. A stern line to the N shore is the standard solution — this reduces swing and compensates for the limited holding. Set the alarm conservatively and check the holding before going below.

Set this in Safety Anchor Alarm — Free

The Anchorage

Steeply shelving bottom reduces effective scope — use extra chain; stern line to N shore is strongly recommended. Sandy patches are present but the steeply sloping seabed limits anchor scope effectiveness. Mountain katabatic gusts can be violent even in calm ambient conditions. Vacate immediately if any southerly develops.

Setting Your Anchor

The bottom at Marathounda is primarily sand and rock with variable holding that requires extra attention. Use the following approach:

  1. Approach slowly and check your depth sounder on the way in. At 47m, deploy at minimum 7:1 scope (49m chain at 7m depth).
  2. Drop into the wind or current and pay out chain steadily as the boat drifts back — do not allow chain to pile on the anchor.
  3. Set firmly in reverse. Apply moderate throttle astern for 30–60 seconds. The chain should tighten without the boat moving backwards.
  4. Snorkel to verify. Given the fair holding here, it is strongly recommended to snorkel down and visually confirm the anchor is buried in sand, not resting on rock.

Recommended anchor types for this bottom: Rocna, Mantus. See our guide to anchor types by bottom for detailed comparisons.

Overnight Anchoring & Anchor Alarm

Overnight stays at Marathounda are feasible but require monitoring. The anchorage is exposed to S and SE and E winds.

Set your GPS anchor alarm to 65m radius before going below for the night.65m; the steeply shelving bottom reduces effective scope and holding reliability. A stern line to the N shore is the standard solution — this reduces swing and compensates for the limited holding. Set the alarm conservatively and check the holding before going below.

May, June, and September only. Avoid in any easterly or southerly forecast. July–August is viable in settled Meltemi but the katabatic gusts demand vigilance.

Navigation Hazards

  • Steeply shelving bottom — reduced scope effectiveness; use extra chain and a stern line ashore
  • Mountain katabatic gusts: violent downslope squalls can occur down the valley even in calm ambient conditions
  • Any southerly wind makes the bay untenable — have an escape plan and monitor forecasts
  • Day-trip boat wake in peak season from Symi Gialos excursions
  • Posidonia patches on bay edges — seek sandy central patches

Rules & Regulations

  • Permit: Not required beyond standard Greek DEKPA transit log
  • Anchoring fee: Free
  • Restrictions: DEKPA and TEPAI required. Anchor on sandy patches only — posidonia present on bay edges. Stern line to shore: use N shore rocks or rings if available.

For a full overview of Greek anchoring rules, see our overnight anchoring rules by region guide.

Facilities

  • Fresh water: Not available on site
  • Fuel: Not available — nearest: Symi (Gialos) (5nm)
  • Restaurant: One seasonal taverna at the beach — open summer only (typically June–September)
  • Provisions: None on site — Symi (Gialos) (5nm)

Skipper's Tips

  1. Take a stern line to the N shore — this is the standard anchoring method in this bay
  2. Arrive in the morning when katabatic gusts are typically calmer; the valley wind tends to build in the afternoon
  3. The taverna is only open in summer — call ahead if planning a meal (it may close in September)
  4. For better shelter in southerly conditions, retreat to Panormitis (7nm SW) which has near-total enclosure
  5. The walk into the valley behind the taverna reveals a dramatic landscape with carved rock features

A note on this guide: The data in this guide has been researched from multiple sailing sources and is provided in good faith. Anchorage conditions — including depth, holding, and local regulations — can change. Before visiting, always check current weather forecasts, NAVTEX and VHF weather bulletins, and consult your up-to-date charts. Use a GPS anchor alarm and never rely solely on a guide for navigational decisions.

Sleep peacefully at Marathounda

Safety Anchor Alarm monitors your GPS position continuously through the night and sounds a loud alarm the moment your boat drifts outside your set radius — so you can relax and enjoy the anchorage.

Download Free for iOS