- window
- tide
- shelter
- hazard
- access
Island reef 15–45 m, steep rock off Ammouliani — grouper/amberjack on the drop; outside the Athos 500 m line. Boat.
Google MapsToday — right on the edge — wave, wind and visibility.
Sources & confidence
Compiled by the spearo sea-state engine
The verdict comes from seven water factors and hard safety gates — not ten tabs. Go or stay.
Our own model
Our own forecast engine — not a third-party widget. It weighs these water factors into one go-or-stay verdict for this coast; the 0–10 dial is that verdict, read out as a number.
Safety gates
It all folds into a single 0–10 score and one verdict: go or stay.
A forecast, not a guarantee — the sea has the last word.
Where to get in, where to hunt
Wind, wave and the swell windows — when to go and the best hours.
The day is picked above, in the hero. Here are that day's windows, the hour-by-hour map and the trends. Tap a window to break down the conditions.
Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.
spearo.app folds wind, wave, swell period, visibility, tides, water temperature and risk into a single verdict — go to the spot or not. It computes 7 days ahead from open marine models (Open-Meteo, IPMA), with no sign-up and no accounts. Built for solo spearfishing off the rocks, where any mistake costs dearly.
Now live: 1152 spots across 189 stretches of coast — mainland Portugal, Madeira and the Azores.
See all spotsRelief and bottom type, tides, and the depths of each spot.
The models set the window. Whether you go in is read only at the water: count the sets, watch the surge on the entry. If in doubt, you don't get in.
Scouted entries, coloured by today. The colour is the sea state at the spot, not a guarantee: the wash and a slippery entry you judge on site.
Open the seafloor mapIsland reef 15–45 m, steep rock off Ammouliani — grouper/amberjack on the drop; outside the Athos 500 m line. Boat.
Google MapsIslet cluster E of Ammouliani, rock walls with caves to 23 m — octopus, moray; shallow, calm, beginner-friendly. Boat/shore.
Google MapsAmmouliani: Lobsters — big rock+cave 5–40 m; Irina — reef/wall 2–40 m with large amberjack. Boat.
Google MapsShallow reef 2–9 m off Ouranoupoli town — beginner/training ground at the base, sheltered. Shore.
Google MapsRock formations/ledges 3–40 m (Petalo 2 to 55 m) NW of Ammouliani — corb, snappers, large groupers, octopus, moray; the trophy structure of the area. Boat.
Google MapsSOLO is the biggest risk: underwater you can black out from lack of oxygen silently and fatally, with no one around. Solo is never truly «safe». Below are the best weather windows; carry a buoy, tell someone your plan and exit time, and any doubt — don't go.
Cameras, map and reference — to hand as you come up.
Check the cam BEFORE you leave. Foam, brown/green murk, or waves washing the entry rocks = No-go. At night/in fog the cam is useless — treat it as «unknown», NOT «green».
National minimum sizes + a 150 g floor (in the table below); grouper 1/day. Spearfishing is closed all May (ΠΔ 373/1985).
Rules change, and the local Λιμεναρχείο (port authority) may impose local restrictions. Before heading out, check the current rules and the declared archaeological zones (ENALIA).
For spearfishing, Ouranoupoli points you toward Ammouliani and the Drenia islets. The channel has granite reefs, walls, caves and shallow ground that often stays sheltered in N/NE meltemi. The Mt Athos coast is not part of the plan: keep at least 500 m away. May is a total Greek spearfishing ban, no licence has been issued since 2014, and legal hunting is freediving-only with a 5 kg per person daily limit.
Use the Ammouliani and Drenia side. The deeper reefs are boat-led; Magiatika is the shallow shore-training option near town.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Drenia / Anatoli islets | Islet walls and caves | To 23 m | Shallow and calmer | Boat or shore | A beginner-friendlier cluster east of Ammouliani with octopus and moray. |
| Dias island | Island reef with steep drop | 15-45 m | Deeper boat ground | Boat | Off Ammouliani, outside the Athos 500 m line, with grouper and amberjack on the drop. |
| Petalo 1 & 2 | Rock ledges and trophy structure | 3-40 m, Petalo 2 to 55 m | Advanced depth | Boat | The deeper food structure NW of Ammouliani, with corb, snappers, grouper, octopus and moray. |
| Magiatika | Shallow reef off Ouranoupoli | 2-9 m | Training ground | Shore | The sheltered shallow option when you do not want to move into deeper boat spots. |
The useful local season is June to October. May is fully closed to spearfishing throughout Greece. In N/NE meltemi, Ammouliani and Drenia can make a workable lee, while deeper places such as Dias and Petalo still require conservative freediving and a clean boat plan. Greece allows spearfishing only on breath-hold: scuba or compressed air is banned. The daily catch limit is 5 kg per person, and no spearfishing licence has been issued since 2014, though gov.gr registry checks still matter.
Do not plan on it. Stay at least 500 m off the Mt Athos coastline and hunt the Ammouliani/Drenia side only.
Magiatika is the shallow 2-9 m reef off Ouranoupoli; Drenia is also shallower and calmer.
Yes. May is a total spearfishing ban across Greece (ΠΔ 373/1985), including Ouranoupoli.
No spearfishing licence has been issued since 2014. Check gov.gr for the current recreational-fisher registry.
No. Greek spearfishing is freediving-only; scuba and compressed-air gear are banned.
Leave your email — and the moment a window opens at Ouranoupoli, we'll send the go / no-go verdict. Email is all we need.
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transparency ~15 m · satellite, 2 days agosatellite estimate · may differ right at the shore