- window
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Cay & patch reef, 2–8 m — legal (outside reserves). Lionfish, lobster (by hand only), snapper.
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 mapCay & patch reef, 2–8 m — legal (outside reserves). Lionfish, lobster (by hand only), snapper.
Google MapsMangrove cay/reef 2–8 m — legal, beginner; snapper, reef fish, lobster (by hand). Estimated.
Google MapsShelf-edge wall, 15–40 m — legal (outside reserves). Cubera snapper, grouper, pelagics.
Google MapsShelf wall 15–45 m+ — legal, advanced; pelagics and grouper on the edge. Approximate.
Google MapsReef & seagrass, 3–12 m — legal (outside reserves). Hogfish, lobster (by hand only), snapper.
Google MapsReef/point 3–15 m — legal, intermediate; grouper, snapper. Estimated.
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.
Rules change. Before heading out, check with the DRNA (Departamento de Recursos Naturales y Ambientales) and the federal NOAA rules (50 CFR 622).
Guánica offers the broadest south-coast mix: Gilligan's Island and Cayo Don Luis in 2-8 m water, Punta Ballena and Playa Santa on reef and seagrass, then La Pared and the east shelf in advanced depths. Calm mangrove water does not make the wall easy. Use small south swell, early light and a clear boat plan. DRNA rules require a recreational licence for visitors too. Keep the spear more than 30 m from the coast, hunt on breath-hold only, and reserve night work for lionfish. If a reserve boundary is uncertain, treat it closed.
Gilligan's Island is the shallow start. Punta Ballena and Playa Santa are the mixed reef options. Guánica Wall is advanced water for trained partners, not a fallback when the bay is crowded.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Gilligan's Island / Cayo Aurora | Mangrove cay and reef | 2-8 m | Beginner with supervision | Short boat run | Snapper, reef fish and hand-taken lobster where legal. Watch swimmers and small boats. |
| Punta Ballena | Point reef | 3-15 m | Intermediate | Shore or boat | A reef edge for legal grouper and snapper in clean water. South swell reduces exit safety. |
| Guánica Wall / La Pared | Shelf wall | 15-45 m+ | Advanced | Boat | Pelagics and grouper on the edge. Use only with a trained buddy, float and settled sea. |
The south coast likes low S to SW swell and light morning wind. If the bay turns cloudy or the wall has current, stay shallow or stop.
Carry a DRNA recreational licence. No scuba-assisted spearfishing. Keep more than 30 m from shore, leave Nassau and goliath grouper, parrotfish and queen conch alone, and handle reserves fail-closed.
Only the shallow cay and bay options are beginner-friendly in calm water.
Yes. DRNA licensing applies to tourists.
No. Lobster is hand-only where legal.
Night spearfishing is limited to lionfish.
Treat it as closed and move outside.
Leave your email — and the moment a window opens at Guánica, we'll send the go / no-go verdict. Email is all we need.
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