- window
- tide
- shelter
- hazard
- access
Rock formations/vertical monoliths ≤25 m, a mid-gulf islet — a 'miniature Meteora' underwater, diverse life. 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 mapRock formations/vertical monoliths ≤25 m, a mid-gulf islet — a 'miniature Meteora' underwater, diverse life. Boat.
Google MapsReef 16–30 m, protruding reef tops, peaceful — grouper/dentex on the rock. Boat.
Google MapsWreck of a 35 m freighter (1917), bow 17 m, upright, at Agia Kyriaki — ⚠️ Trikeri-channel current at the gulf mouth. Boat.
Google MapsWreck 8–10 m off the Lichadonisia islets, NW tip of Evia (Oreoi channel) — reachable from the Trikeri side. Boat.
Google MapsCave/wall 5–40 m+ mid-gulf — sponge-walled caves + a vertical gorge; corb/grouper in the dark. 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).
Spearfishing around Volos changes completely between the enclosed Pagasitikos and the outer Pelion coast. The gulf is sheltered, greener and lower-visibility, with tsipoura, lavraki and octopus. Outer Pelion is clearer but exposed to meltemi and swell. May is fully closed across Greece, no spearfishing licence has been issued since 2014, and legal hunting is freediving-only with a 5 kg per person daily limit.
Use the Pagasitikos for shelter and outer Pelion only when the Aegean side is truly calm. The Trikeri mouth adds current to wreck planning.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Alatas Island | Mid-gulf rock formations and vertical monoliths | To 25 m | Boat, sheltered gulf | Boat | A varied-life structure inside the gulf, away from outer Pelion exposure. |
| Dontia / Prasouda Reef | Reef with protruding tops | 16-30 m | Quiet but deeper | Boat | Grouper and dentex rock that needs disciplined breath-hold diving. |
| Twin Caves / Faraggi | Caves, wall and vertical gorge | 5-40 m+ | Demanding | Boat | Sponge-walled caves and darker rock with corb and grouper. |
| Kali Tichi Wreck | Freighter wreck at Agia Kyriaki | Bow 17 m, wreck 35 m | Current-aware boat dive | Boat | The Trikeri-channel current is the key constraint. |
The gulf works from spring to autumn, but May is a total spearfishing ban nationwide. Outer Pelion is best treated as June and September to October. If the Aegean side has meltemi or swell, stay in the Pagasitikos. Greek rules require freediving only, no scuba or compressed air, and a 5 kg per person daily catch limit. Check gov.gr because no spearfishing licence has been issued since 2014, while registry requirements may still apply.
Yes. The gulf is sheltered but greener and lower-visibility; outer Pelion is clearer and more exposed.
The gulf mouth funnels current, especially relevant for wrecks and boat exits.
Yes. May is a total spearfishing ban across Greece (ΠΔ 373/1985), including Volos.
No spearfishing licence has been issued since 2014. Check gov.gr for current registry requirements.
No. Spearfishing in Greece is freediving-only; scuba and compressed-air gear are banned.
Leave your email — and the moment a window opens at Volos (Pelion), we'll send the go / no-go verdict. Email is all we need.
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