{
  "id": "greece-cyclades",
  "destination": "greece",
  "name": "Greece",
  "route_label": "the Cyclades from Lavrio",
  "kind": "second",
  "question": "What is a good 7-day sailing itinerary in Greece in the Cyclades, from Lavrio?",
  "answer": "A popular 7-day sailing itinerary in Greece in the Cyclades, from Lavrio starts and ends in Lavrio and goes Lavrio → Kea (Otzias Bay) → Kythnos (Loutra) → Serifos (Livadi) → Sifnos (Kamares) → Antiparos → Syros (Finikas) → Lavrio: 7 legs and about 145 nautical miles in straight lines between the stops (our calculation; you will sail further). By our rules the best months for it are September and October, when the mean wind at Ermoupoli, Syros is 12–13 knots (our calculation from NASA POWER data); we have no official source on the summer meltemi, so check the forecast before the longer legs.",
  "answer_markdown": "A popular 7-day sailing itinerary in Greece in the Cyclades, from Lavrio starts and ends in Lavrio and goes Lavrio → Kea (Otzias Bay) → Kythnos (Loutra) → Serifos (Livadi) → Sifnos (Kamares) → Antiparos → Syros (Finikas) → Lavrio: 7 legs and about 145 nautical miles in straight lines between the stops (our calculation; you will sail further). By our rules the best months for it are September and October, when the mean wind at Ermoupoli, Syros is 12–13 knots (our calculation from NASA POWER data ([NASA POWER](https://power.larc.nasa.gov/docs/services/api/temporal/monthly/), checked 28 Oct 2026)); we have no official source on the summer meltemi, so check the forecast before the longer legs.",
  "canonical_url": "https://catamaranindex.com/itineraries/greece-cyclades/",
  "markdown_url": "https://catamaranindex.com/itineraries/greece-cyclades.md",
  "api_url": "https://catamaranindex.com/api/itineraries/greece-cyclades.json",
  "destination_url": "https://catamaranindex.com/greece/",
  "best_time_url": "https://catamaranindex.com/best-time/greece/",
  "true_cost_url": "https://catamaranindex.com/true-cost/greece/",
  "licence_url": "https://catamaranindex.com/licence-by-country/greece/",
  "book_url": "https://catamaranindex.com/go/samboat?dest=greece&pos=api",
  "checked": "2026-10-29",
  "basis": {
    "status": "secondary",
    "note": "Adapted from Yachtico's Cyclades route. Changes: the Sifnos overnight is Kamares, the island's main port (the source's Sifnos stop name is unclear: our choice); Day 7 returns to Lavrio instead of ending at Kea, because a charter boat goes back to its base; the source's 50 nm Day 7 figure (Syros to Kea) is not shown against our Day 7 leg because the endpoint differs. Yachtico's Day 1 stop is named Kea (Vourkari) with the overnight in Otzias Bay; our stop is Otzias Bay, so its 12 nm and our figure are to slightly different places. The base, Olympic Marine in Lavrio, is our choice.",
    "sources": [
      {
        "id": "it_yachtico_cyclades",
        "name": "Yachtico",
        "title": "Sailing Itinerary Greek Islands: Cyclades (Lavrio–Kea–Paros), 168 NM",
        "url": "https://www.yachtico.com/route-suggestion-cyclades",
        "checked": "2026-10-29",
        "note": "Charter platform's route suggestion, undated. Day 7 is listed as 50 NM Syros–Kea while its text says 35–40 NM direct.",
        "tier": "secondary"
      }
    ]
  },
  "stops": [
    {
      "index": 0,
      "name": "Lavrio",
      "lat": 37.696,
      "lon": 24.0621,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 1,
      "name": "Kea (Otzias Bay)",
      "lat": 37.6752,
      "lon": 24.3522,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 2,
      "name": "Kythnos (Loutra)",
      "lat": 37.442,
      "lon": 24.4249,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 3,
      "name": "Serifos (Livadi)",
      "lat": 37.1425,
      "lon": 24.5141,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 4,
      "name": "Sifnos (Kamares)",
      "lat": 36.9885,
      "lon": 24.6754,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 5,
      "name": "Antiparos",
      "lat": 36.9944,
      "lon": 25.0482,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    },
    {
      "index": 6,
      "name": "Syros (Finikas)",
      "lat": 37.3994,
      "lon": 24.8789,
      "kind": "not_verified",
      "kind_sources": [],
      "rules": [],
      "fees": []
    }
  ],
  "legs": [
    {
      "day": 1,
      "from": "Lavrio",
      "to": "Kea (Otzias Bay)",
      "distance_nm": 13.8,
      "source_distance_nm": 12
    },
    {
      "day": 2,
      "from": "Kea (Otzias Bay)",
      "to": "Kythnos (Loutra)",
      "distance_nm": 14.4,
      "source_distance_nm": 15
    },
    {
      "day": 3,
      "from": "Kythnos (Loutra)",
      "to": "Serifos (Livadi)",
      "distance_nm": 18.5,
      "source_distance_nm": 23
    },
    {
      "day": 4,
      "from": "Serifos (Livadi)",
      "to": "Sifnos (Kamares)",
      "distance_nm": 12.1,
      "source_distance_nm": 14
    },
    {
      "day": 5,
      "from": "Sifnos (Kamares)",
      "to": "Antiparos",
      "distance_nm": 17.9,
      "source_distance_nm": 29
    },
    {
      "day": 6,
      "from": "Antiparos",
      "to": "Syros (Finikas)",
      "distance_nm": 25.6,
      "source_distance_nm": 25
    },
    {
      "day": 7,
      "from": "Syros (Finikas)",
      "to": "Lavrio",
      "distance_nm": 42.8
    }
  ],
  "total_distance_nm": 145.1,
  "distance_method": "Great-circle distance between OpenStreetMap (Nominatim) coordinates, Earth radius 6,371.0088 km, 1 nm = 1.852 km. Straight lines: the sailed distance is longer.",
  "weather": {
    "reference_point": {
      "place": "Ermoupoli, Syros",
      "lat": 37.445,
      "lon": 24.94,
      "elevation_m": 20.74
    },
    "months": [
      {
        "month": 1,
        "name": "January",
        "mean_temp_c": 13.2,
        "mean_wind_kn": 14
      },
      {
        "month": 2,
        "name": "February",
        "mean_temp_c": 13.3,
        "mean_wind_kn": 13.6
      },
      {
        "month": 3,
        "name": "March",
        "mean_temp_c": 14.3,
        "mean_wind_kn": 12.6
      },
      {
        "month": 4,
        "name": "April",
        "mean_temp_c": 16.3,
        "mean_wind_kn": 10.4
      },
      {
        "month": 5,
        "name": "May",
        "mean_temp_c": 19.2,
        "mean_wind_kn": 9.3
      },
      {
        "month": 6,
        "name": "June",
        "mean_temp_c": 23.3,
        "mean_wind_kn": 9.9
      },
      {
        "month": 7,
        "name": "July",
        "mean_temp_c": 25.6,
        "mean_wind_kn": 13.1
      },
      {
        "month": 8,
        "name": "August",
        "mean_temp_c": 25.8,
        "mean_wind_kn": 13.4
      },
      {
        "month": 9,
        "name": "September",
        "mean_temp_c": 24,
        "mean_wind_kn": 12.5
      },
      {
        "month": 10,
        "name": "October",
        "mean_temp_c": 20.7,
        "mean_wind_kn": 12
      },
      {
        "month": 11,
        "name": "November",
        "mean_temp_c": 17.9,
        "mean_wind_kn": 12.4
      },
      {
        "month": 12,
        "name": "December",
        "mean_temp_c": 14.9,
        "mean_wind_kn": 13.2
      }
    ],
    "source": "NASA POWER monthly, 2016–2025 means (our calculation)"
  },
  "best_months": {
    "best_weather": [
      "June",
      "July",
      "August",
      "September",
      "October"
    ],
    "sweet_spot": [
      "September",
      "October"
    ],
    "families": [
      "June",
      "September",
      "October"
    ],
    "windiest": [
      "January",
      "February",
      "August"
    ],
    "rules": {
      "best_weather": "Warm (≥ 20 °C) and outside the Atlantic hurricane season (1 June–30 November, NOAA) or Tahiti's wet season (November–April, Tahiti Tourisme). Not given where we have no season or rainfall source.",
      "sweet_spot": "Best-weather months that are not among the 3 priciest months (our rule).",
      "families": "The calmest best-weather months by mean wind (our suggestion; mean wind is not gusts or sea state).",
      "wind": "The windiest months by mean wind speed at our reference point (our ranking)."
    }
  },
  "marina_examples": [],
  "rules": [
    {
      "text": "The meltemi, a strong summer northerly in the Aegean: we found no official source on how often or how hard it blows, so we only show our NASA POWER mean wind.",
      "status": "not_verified",
      "sources": []
    }
  ],
  "fees": [],
  "not_verified": [
    "Olympic Marine (Lavrio) transit price.",
    "Town-quay fees on Kea, Kythnos, Serifos, Sifnos, Antiparos and Syros.",
    "An official source on the meltemi."
  ],
  "status_legend": {
    "official": "Read in an official text: government, park or port authority, or an operator's own published price list.",
    "secondary": "From a newspaper, NGO, guide, charter company or community map; not official.",
    "not_verified": "We could not confirm it. We leave it open rather than guess, and never add it to a total."
  },
  "source_counts": {
    "official": 0,
    "secondary": 2
  },
  "derived": "distance_nm, total_distance_nm, catamaran_eur_by_month and best_months are our calculation; weather means are our calculation from NASA POWER data.",
  "sources": [
    {
      "id": "it_yachtico_cyclades",
      "name": "Yachtico",
      "title": "Sailing Itinerary Greek Islands: Cyclades (Lavrio–Kea–Paros), 168 NM",
      "url": "https://www.yachtico.com/route-suggestion-cyclades",
      "checked": "2026-10-29",
      "note": "Charter platform's route suggestion, undated. Day 7 is listed as 50 NM Syros–Kea while its text says 35–40 NM direct.",
      "tier": "secondary"
    },
    {
      "id": "it_osm_nominatim",
      "name": "OpenStreetMap (Nominatim geocoder)",
      "title": "Nominatim search API: coordinates of each itinerary stop",
      "url": "https://nominatim.openstreetmap.org/",
      "checked": "2026-10-29",
      "note": "Coordinates © OpenStreetMap contributors, available under the Open Database Licence (https://www.openstreetmap.org/copyright). One query per stop, run by scripts/fetch-stop-coords.mjs; the queries are in src/data/itinerary-stops.json. Community map data, not an official gazetteer.",
      "tier": "secondary"
    },
    {
      "id": "nasa_power_monthly",
      "name": "NASA POWER",
      "title": "Prediction Of Worldwide Energy Resources: Monthly API (T2M, WS10M)",
      "url": "https://power.larc.nasa.gov/docs/services/api/temporal/monthly/",
      "checked": "2026-10-28",
      "note": "Monthly point data for 2016–2025 pulled on 28 Oct 2026 with scripts/fetch-weather.mjs (API v2.10.0, community RE, parameters T2M = temperature at 2 m in °C and WS10M = wind speed at 10 m in m/s; meteorological grid ½° × ⅝° per https://power.larc.nasa.gov/docs/methodology/). One request per reference point, in the form https://power.larc.nasa.gov/api/temporal/monthly/point?parameters=T2M,WS10M&community=RE&longitude=<lon>&latitude=<lat>&start=2016&end=2025&format=JSON (coordinates in src/data/weather.ts). Route points for the Dubrovnik and Cyclades itineraries are in src/data/weather-routes.ts (scripts/fetch-route-weather.mjs, pulled 29 Oct 2026). Credit: https://power.larc.nasa.gov/docs/referencing/ . The pages we opened did not state a licence; NASA data is described to us as free for any use. Palma (Mallorca) reference point for the Mallorca vs Ibiza comparison in src/data/weather-routes.ts (scripts/fetch-route-weather.mjs, pulled 29 Oct 2026)."
    },
    {
      "id": "k12_greece",
      "name": "12 Knots",
      "title": "Catamaran charter in Greece",
      "url": "https://12knots.com/en/yacht-charter/destinations/mediterranean-sea/greece/catamaran-charter/",
      "checked": "2026-10-27",
      "note": "Page states \"Updated October 2026\"."
    }
  ],
  "attribution": "Cite \"Catamaran Index\" with a link to the canonical_url of the page the figure comes from, and name the original source listed with it.",
  "coordinates_licence": "Coordinates © OpenStreetMap contributors, ODbL (https://www.openstreetmap.org/copyright).",
  "affiliate_note": "book_url links go through /go/samboat, an affiliate link: Catamaran Index may earn a commission on bookings, at no extra cost to the traveller. It never changes the data."
}