Anchorage GuideSporades — Alonnisos, Greece0nm from Patitiri (this is the main port)

Patitiri Anchorage Guide

Also known as: Πατητήρι, Patitiri Harbour, Port Alonnisos

Patitiri is the main port and only sizeable town on Alonnisos, built on the hillside above a small natural harbour on the island's southern tip. It is the primary provisioning, fuelling, and departure point for the Northern Sporades and the entry hub for the National Marine Park. The harbour is busy with ferries and fishing boats but stern-to berths for visiting yachts are generally available on the NE quay. Full services including water, fuel, provisions, restaurants, ATMs, and a chandlery make this the essential supply stop before heading into the remote park islands. The park warden office for NMPANS permits is also located here. The harbour is comfortable in NE–N meltemi conditions and most wind directions except strong SW.

Quick Reference

GPS Coordinates

39°07.9'N 23°52.2'E

Depth

25m

Bottom

sand, mud

Holding

Good Holding

Protected From

N, NE, E, SE, S, W, NW

Exposed To

SW

Best Months

May, June, July, August, September

Anchoring Fee

Harbour dues apply to stern-to berths (modest fee; ~€10–15/night for yachts 10–12m). Free anchoring in the outer bay.

Permit Required

No

40m

Recommended Anchor Alarm Radius

40m for stern-to berth in the main harbour; swing is minimal when properly moored. Outer anchorage requires 80m to account for open exposure to S/SW and the deeper depths (5–10m). Inner harbour alarm can be set tighter (30m) once lines are secured.

Main quay and harbour — stern-to: 40m recommended — Stern-to berths along the main quay in 2–5m on sand and mud.

Outer anchorage (S of main port): 80m recommended — Free anchoring in the small bay immediately S of Patitiri in 5–10m on sand.

Set this in Safety Anchor Alarm — Free

Anchoring Zones

Patitiri has 2 distinct anchoring zones, each with different depth, holding, and exposure characteristics. Choose the zone that matches your boat size and the expected overnight conditions.

Zone 1: Main quay and harbour — stern-to

  • Depth: 25m
  • Bottom: sand, mud
  • Holding: Good Holding
  • Protected from: N, NE, E, SE, S, W, NW
  • Exposed to: SW
  • Recommended alarm radius: 40m

Stern-to berths along the main quay in 2–5m on sand and mud. Anchors set well in the soft bottom. The quay is usually busy with local ferries and fishing boats; stern-to berths for yachts are available on the NE section. Harbour master allocates berths. In strong SW winds (rare in summer), the harbour suffers significant swell — move to the inner corner or consider anchoring in the small bay immediately south of the main port. Showers and toilets available at the harbour office.

Zone 2: Outer anchorage (S of main port)

  • Depth: 510m
  • Bottom: sand
  • Holding: Good Holding
  • Protected from: N, NE, E, NW
  • Exposed to: S, SW, SE
  • Recommended alarm radius: 80m

Free anchoring in the small bay immediately S of Patitiri in 5–10m on sand. More room than the port and pleasant in settled conditions or N winds. Exposed to SW/S — if SW swell arrives move into the port. Some posidonia patches near the shallower eastern edge; seek sandy patches.

Setting Your Anchor

The bottom at Patitiri is primarily sand and mud with reliable holding when properly set. Use the following approach:

  1. Approach slowly and check your depth sounder on the way in. At 25m, deploy at minimum 7:1 scope (35m chain at 5m 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. Take a GPS bearing. Note your position once set and compare to the scope calculator to confirm you have adequate chain for the depth.

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

Overnight Anchoring & Anchor Alarm

Overnight stays at Patitiri are feasible but require monitoring. The anchorage is exposed to SW winds.

Set your GPS anchor alarm to 40m radius before going below for the night.40m for stern-to berth in the main harbour; swing is minimal when properly moored. Outer anchorage requires 80m to account for open exposure to S/SW and the deeper depths (5–10m). Inner harbour alarm can be set tighter (30m) once lines are secured.

Open and functional year-round. Peak season July–August is very busy but manageable. May–June and September are ideal for provisioning and then heading north into the quieter park areas. Patitiri is primarily a transit and supply stop rather than a destination anchorage.

Navigation Hazards

  • Ferry traffic: high-speed and conventional ferries use the port regularly; give way at all times and do not anchor in the ferry lane
  • SW swell in the harbour: rare in summer but can make stern-to berths uncomfortable if a SW wind develops overnight; check forecast before settling for the night
  • Outer anchorage exposed to S/SW: treat as fair-weather or N-wind anchorage only
  • Posidonia in outer anchorage edges: anchor on sandy patches and snorkel to verify if in doubt
  • Busy in July–August: harbour fills early; arrive before 10:00 or call the harbour master on VHF 12 in advance

Rules & Regulations

  • Permit: Not required beyond standard Greek DEKPA transit log
  • Anchoring fee: Harbour dues apply to stern-to berths (modest fee; ~€10–15/night for yachts 10–12m). Free anchoring in the outer bay.
  • Restrictions: DEKPA and TEPAI required (obtain if not already held). NMPANS information and permits available from the park office in the harbour. Ferries have priority at all times — do not obstruct ferry lane. Outer anchorage: avoid posidonia meadows; anchor on sandy patches only.

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

Facilities

  • Fresh water: Available
  • Fuel: Available
  • Restaurant: Multiple tavernas and cafes in the harbour area and up the hillside lanes. Supermarket, bakery, butcher, and fresh produce market within 200m of the quay.
  • Provisions: Available

Skipper's Tips

  1. Call the harbour master on VHF 12 about 30 minutes before arrival to check available berths
  2. Stock up fully here before heading to Steni Vala, Kyra Panagia, or Gioura — provisioning opportunities diminish significantly north of Patitiri
  3. The park warden office on the harbour front issues free park maps and can advise on seasonal Zone A/B variations — visit before heading into the park
  4. Alonnisos Old Village (Hora) is 4km uphill by taxi or bus — a beautifully restored Venetian village with stunning views; well worth the trip

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 Patitiri

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 Sporades anchorage.

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