7-Day Saronic Islands Itinerary: Athens to Poros, Hydra & Spetses

This 7-day saronic islands itinerary runs a comfortable loop from Alimos Marina (Athens) visiting Aegina, Poros, Hydra, Dokos and Spetses, with short daily hops designed for families and first‑time charter crews—expect most passages to be under 20 NM and the single long day (return to Alimos) to be 30–40 NM depending on your routing.

At‑a‑glance comparison (distance, time, difficulty, mooring)

Notes on the table: these distances are routing ranges used by charter operators and rally guides; exact NM varies with which harbour, anchorage or bypass you choose, and whether you tack or follow ferry channels.

Day 1: Alimos Marina to Aegina

Sailing Details

• Distance: plan for roughly 12–18 NM depending on whether you aim for Agia Marina (east Aegina) or the main town quay; Agia Marina is slightly closer to Alimos.
• Estimated sailing time: around 1.5–3 hours (monohull ~6–7 kt; cat ~7–9 kt). Use your boat’s confirmed cruising speed when planning.
• Difficulty: Easy—mostly coastal water, sheltered from large fetch and manageable for a first day.

Mooring & anchoring

• Aegina town quay (stern‑to) is the standard if you want to step ashore easily; it fills early in high season. Many yachts prefer Agia Marina or Klima bay where there is good holding and easier dinghy access. Stern‑to with long stern lines is common where quay space is limited.

Recommended stops

• Temple of Aphaia (taxi/uplift from Aegina town).
• Beach time at Klima or Agia Marina (family‑friendly beaches and tavernas). Sheltered alternative for a northerly meltemi: Agia Marina and Klima lie in lee positions and are commonly used as shelter from northerlies.

Day 2: Aegina to Poros

Sailing Details

• Distance: typically 15–20 NM depending on whether you route via Agistri or head direct to Poros.
• Estimated sailing time: ~2–3 hours for a mid‑size monohull; shorter for cats.
• Difficulty: Easy to Moderate — channels near Poros can be busy with ferries; one short cut through the Poros channel gives spectacular scenery but keep watch for commercial traffic.

Mooring & anchoring

• Poros town quay (stern‑to) and public buoys are the usual options; when the quay is full, the pine‑shaded coves on the island (Love Bay / Vayionia) are classical anchor alternatives with excellent holding and family‑friendly water. Many charters plan a night in town for provisioning then a quieter swim stop nearby.

Recommended stops

• Walk up to the Poros Clock Tower for views and village restaurants.
• Swim and picnic at Love Bay (wooded shore, sandy/pebbly bottom). For meltemi days pick Vayionia or the lee of the island rather than exposed beaches.

Day 3: Poros to Hydra

Sailing Details

• Distance: about 12–16 NM depending on approach; many charter routes list ~12 NM for a direct hop.
• Estimated sailing time: 1.5–2.5 hours for most charter boats.
• Difficulty: Moderate — a pleasant sail but Hydra’s harbour is small and quickly crowded; larger yachts frequently anchor out.

Mooring & anchoring

• Hydra town quay: small, often rafted or triple‑parked; water and quay services are available but expect crew to tender in if you anchor off. For safety and comfort in breezy conditions use nearby coves like Agios Nikolaos or Tselevinia which provide more sheltered anchor options.

Recommended stops

• Walk the car‑free streets, visit the Hydra Historical Archives Museum, and allow time for an afternoon swim in Kavouri/Bisti if you prefer quieter water. If the meltemi builds, choose a lee cove and run long stern lines ashore if required.

Day 4: Hydra to Dokos

Sailing Details

• Distance: a very short hop—plan roughly 4–8 NM depending on which Dokos bay you aim for. Dokos sits next to Hydra and is commonly done as a quiet overnight.
• Estimated sailing time: under an hour to about 1.25 hours for most boats.
• Difficulty: Easy — sheltered anchorages and minimal traffic.

Mooring & anchoring

• Dokos is anchor‑only. Bays have sand/mud bottoms with good holding and deep enough water for typical charter craft (depths vary; anchor scope and local sounder readings are essential). Stern lines ashore are common in tighter coves.

Recommended stops

• Quiet swim & snorkel; explore the small archaeology sites if you have a dinghy and time. Dokos is the “quiet night” on the loop—use it as a weather rest point if the meltemi has been active.

Day 5: Dokos to Spetses

Sailing Details

• Distance: confirm with your operator or routing tool, as published distances for Dokos to Spetses vary depending on route and anchorage choice.
• Estimated sailing time: 1.5–3 hours depending on routing and boat.
• Difficulty: Moderate — more open water exposure to southerly or northerly winds than earlier legs; keep an eye on forecasts.

Mooring & anchoring

• Spetses town (Dapia) offers stern‑to berthing in the old harbour and larger berths near the Poseidonion area; Dapia fills early. For a quieter night pick anchorages like Zogeria or Agia Paraskevi, which provide better lee. Baltiza (inner harbour) gives extra protection for larger yachts.

Recommended stops

• Visit the Bouboulina Museum and stroll the waterfront promenade; consider an evening ashore at Dapia then a quieter swim stop the next morning. If meltemi is forecast, use the island’s pine‑fringed east coves for shelter.

Day 6: Spetses to Ermioni

Sailing Details

• Distance: confirm with your operator or routing tool, as published distances for Spetses to Ermioni vary depending on route and anchorage choice.
• Estimated sailing time: ~1–2 hours.
• Difficulty: Easy — close inshore, protected by headlands and the Peloponnese.

Mooring & anchoring

• Mandrakia quay (south of Ermioni) is the preferred shoreline mooring with tavernas close at hand; the northern commercial harbour gives shelter in some wind directions but may be less convenient. Anchor options exist off the bay; stern‑to mooring is common where allowed. Arrive before late afternoon—the quay fills.

Recommended stops

• Local markets and a taverna supper in town; short hikes up to local viewpoints if your group wants a land activity. Ermioni is a good last‑night choice for provisioning before your return.

Day 7: Ermioni to Alimos Marina (Athens)

Sailing Details

• Distance: plan 30–40 NM for the direct return; exact NM depends on whether you choose a coastal route via Cape Sounion or a more direct crossing. Many operators treat this as the long day of the week.
• Estimated sailing time: allow 4.5–6.5 hours on a monohull; cats will be quicker but still a substantial day. Plan for contingencies.
• Difficulty: Moderate to Challenging if the northerly thermal builds; start early to avoid uncomfortable afternoon fetch and to give time for late returns into base.

Mooring & final practicals

• Alimos Marina (your check‑in/out base) is the end point. Typical charter bases schedule check‑out and return windows in the late morning or mid‑afternoon—many bases ask for the boat back in the late afternoon on the last charter day. Allow buffer for berthing, fuel, cleaning and inventory checks.

Travel tips for a smooth return

• Depart early (before the thermal peaks) if the forecast shows a northerly; carry extra fuel margin if you must motor in light winds; arrive with time for end‑of‑charter formalities—these can take longer if there’s a late arrival or a line of boats. Many operators run their handover and inventory between mid‑afternoon and early evening.

Sheltered anchorage choices for meltemi (quick list)

• Aegina: Agia Marina / Klima (sheltered lee from N winds).
• Poros: Vayionia / Love Bay (pine cover, excellent leeward shelter).
• Hydra: Agios Nikolaos, Bisti or the lee behind small islets (avoid the town quay if gusting).
• Dokos: southern and inner bays — classic quiet, well‑sheltered anchorages.
• Spetses: Zogeria and Agia Paraskevi for overnight shelter; Dapia for provisioning but it fills early. When the meltemi (northerly summer wind) is present it tends to be milder in the Saronic than in the central Cyclades, but it can still reach force 4–5 on occasion — plan leeward coves as your primary option.

Mooring choices: harbour quay vs buoy vs anchoring — what to choose

• Town quay (stern‑to / Med moor): best for families who want immediate shore access, fresh water, cafés and provisioning. Expect to give long stern lines and keep an anchor ready—quay spots fill early.
• Public laid buoys: convenient in Poros/Spetses; cheaper than private marina berth but you still need fenders and stern lines. Buoys can be scarce in high season.
• Anchorages: quiet nights, privacy and lower cost; choose sand/mud bottoms for good holding and run stern lines if the lee is narrow. Dokos and many Spetses coves are anchor‑only.

Trade‑offs: quay = convenience + cost + crowding; buoy = convenience but availability varies; anchor = privacy and shelter selection but requires more seamanship (scope, swing room, night watch).

Difficulty ratings and what makes a leg harder

Use this practical ladder when you plan each day:

• Easy: short transit (<15 NM), sheltered waters, minimal commercial traffic (e.g., Alimos→Aegina, Spetses→Ermioni).
• Moderate: open water sections, ferry lanes, or busy harbours where precision med‑mooring is needed (Aegina→Poros, Poros→Hydra, Dokos→Spetses).
• Challenging: long single‑day passages (Ermioni→Alimos / Spetses→Piraeus direct) or strong afternoon northerlies; plan early starts and midday contingency anchorages.

Practical checklist (family & first‑time charter focus)

• Check berth allocation & final check‑out time with your base before departure; many bases expect return in the late afternoon.
• Provision in Poros/Aegina/Spetses depending on your route; these are the best provisioning stops on the loop.
• Fuel: plan for the long return leg and have at least a 10–15% fuel reserve if you expect to motor. Consumption varies by boat and speed—confirm your boat’s hourly burn rate at handover.
• Children & safety: plan shorter on‑deck watches on longer days, use safety lines when moving on deck, and pick calmer anchorages for overnighting. Use dinghy shore runs rather than beach landings for younger children where possible.
• Weather: the Saronic is generally milder than the Cyclades but meltemi can still affect comfort in July–August; check forecasts daily and pick a lee cove mid‑afternoon if wind builds.

Plan your timing so you arrive at harbours before 15:00 in high season—many town quays and laid buoys are taken by late afternoon.

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Plan your 7‑day sailing adventure through the Saronic Islands today — choose the route variant that suits your crew’s sea time and mix the town quays with at least two quiet anchor nights (Dokos and a Poros or Spetses bay are ideal).

Frequently Asked Questions

What is the daily nautical mileage for each leg of the itinerary?

Daily mileages are shown in the day-by-day table and vary by routing; expect roughly 12–18 NM for the first legs and 30–40 NM for the return; total for the core loop is typically ~95–140 NM, with longer variants up to ~170–175 NM depending on side trips.

Which sheltered anchorages work best if the meltemi blows?

Shelter choices: Agia Marina / Klima (Aegina) for northerlies; Vayionia / Love Bay (Poros) for lee from NE winds; Agios Nikolaos, Tselevinia or small coves east of Hydra for local shelter; Dokos bays give very quiet, well-protected nights. Use the island’s leeward coves rather than exposed anchorages in strong northerlies.

What are the mooring options at each stop?

Most stops offer stern-to town quay mooring, public laid buoys, and anchorages nearby; marinas are limited. Hydra’s town quay is small and crowded (many yachts anchor off and tender in); Poros and Spetses provide both quay spots and laid buoys, while Aegina has town quay/anchorage and some sheltered bays.

How long does it take to sail back to Piraeus from each destination?

Approximate point-to-Piraeus times (monohull at ~6.5 kt / cat ~8 kt): Aegina ~2–2.5h / 1.5–2h; Poros ~4.0–5.0h / 3.5–4.0h; Hydra ~5.5–6h / 4.5–4.8h; Ermioni ~5.5–6.5h / 4.5–5h; Spetses ~7.5–8.5h / 6.5–7h. Dokos has no ferry connections—reach Hydra first and continue to Piraeus.

What are the difficulty ratings for each leg of the itinerary?

Legs are mostly Easy→Moderate: sheltered waters and short hops. The busiest/difficult spots are Hydra harbour (crowded approaches) and the long return leg to Athens/Alimos which is the week’s only long passage and sensitive to afternoon winds.