Spain — Gulf of Cádiz (Atlantic Andalucía)

Best Anchorages in the Gulf of Cádiz

Spain's Atlantic Andalucían coast — the gateway between the Mediterranean and Atlantic. Strait of Gibraltar TSS, 3–4m tidal range, the Levante east wind, and some of Europe's most historically significant sailing waters. These 10 anchorages have been verified for depth, holding, and anchor alarm radius.

3–4m

Atlantic spring tidal range

TSS

Strait traffic — cross at 90°

Levante

E wind F7–8 for days

Apr–Oct

Best sailing season

Strait of Gibraltar — Critical Navigation Warning

The Strait of Gibraltar is one of the world's busiest shipping lanes with a mandatory Traffic Separation Scheme (TSS). Small craft MUST cross the TSS at 90° to the traffic flow (due N or due S) — this is a legal requirement under COLREGS Rule 10. Ferries between Tarifa and Tangier run continuously. Tidal current: 3–4 knots E/W alternating — plan passage timing around the tidal stream (ingoing/E-going approximately 5.5 hours, outgoing/W-going 6.5 hours). The Levante (E wind) against the E-going current creates extremely dangerous short steep seas at the Strait entrance. Listen to Tarifa MRCC traffic reports on VHF Ch 10 (even hours) before any Strait passage.

3–4m Atlantic Tidal Range — All Approaches Require Tidal Calculation

Unlike the Mediterranean, the Gulf of Cádiz has full Atlantic tides with a spring range of 3–4 metres. All charted depths in this guide are above chart datum — always apply tidal height corrections before entry. Sancti Petri bar: 2.5m at LW springs — timing is critical; entry at LW for a deep-draft yacht will result in grounding. Guadiana river bar (Isla Canela): approximately 2.5m at LW springs. The Doñana National Park (E of Mazagón) prohibits anchoring, landing, and motorised access within park boundaries — Spanish coastguard enforces.

About Sailing the Gulf of Cádiz

The Levante & Poniente

Two winds dominate Atlantic Andalucía. The Levante (E/NE wind) funnels through the Strait at F6–8 for 3–5 days at a stretch, particularly July–August. W-facing anchorages (Bolonia, Bay of Algeciras) give excellent shelter; E-facing positions become untenable. The Poniente (W/SW wind) is the Atlantic gale — large swell, seek E-facing shelter. In summer, the Poniente brings fresh sailing along the coast.

Tidal Planning

With 3–4m spring tides, scope calculation is critical: at 6m depth, with a 3m tide, maximum depth at HW is 9m. Use 7:1 scope minimum. Bars at Sancti Petri and the Guadiana require entry at HW-2 or later for drafts over 1.5m. Use Huelva, Cádiz, or Tarifa tidal predictions (Spanish IHM tide tables — free at puertos.es).

Doñana National Park

The Doñana — Europe's largest wetland national park — runs along the coast E of Mazagón. The park boundary extends offshore. No anchoring, landing, or approach within park limits. The Guardia Civil coastguard patrols actively. The park can be visited by authorised guided boat tours from Sanlúcar de Barrameda.

Best Season

April–June: spring passage, good weather. July–August: peak Levante season — plan around east wind periods. September–October: best month for cruising — settled Atlantic weather, warm water, less Levante. November–March: Atlantic depression season — experienced offshore crews only. The ARC rally (Gran Canaria bound) passes through in November.

10 Verified Anchorages

Bahía de Algeciras

(Bay of Algeciras)Good HoldingStrait of Gibraltar (W entrance)

The Bay of Algeciras is the strategic staging anchorage for Strait of Gibraltar passages — the large natural bay just W of Gibraltar shelters from the Levante that can funnel through the Strait at F7+.

Depth

514m

Bottom

sand

Alarm Radius

100m

Crowds

Moderate

Protected: E NE N NWExposed: S SW WRestaurantFree anchoring

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Tarifa Road

(Tarifa anchorage)Good HoldingStrait of Gibraltar (Tarifa Point)

Tarifa is the southernmost point of mainland Europe — 14km from Africa, with Morocco clearly visible across the Strait.

Depth

410m

Bottom

sand

Alarm Radius

95m

Crowds

Moderate

Protected: E SE SExposed: W NW N NERestaurantFree anchoring

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Barbate

(Puerto de Barbate)Good HoldingAtlantic Andalucía (Cabo Trafalgar coast)

Barbate is the major Atlantic tuna fishing port of Spain — the traditional almadraba tuna trap fishing method (thousands of years old, still active) takes place offshore here each May–June when the Atlantic bluefin tuna run through the Strait.

Depth

410m

Bottom

sand

Alarm Radius

90m

Crowds

Quiet

Protected: N NE NW EExposed: S SW WRestaurantFree anchoring

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Cabo Trafalgar / Caños de Meca

(Caños de Meca)Excellent HoldingAtlantic Andalucía (Cape Trafalgar coast)

The anchorage at Caños de Meca, just NE of Cabo Trafalgar, is one of the most historically significant spots on the Atlantic coast of Spain — the 1805 Battle of Trafalgar, in which Nelson defeated the combined French and Spanish fleets, was fought approximately 6 miles off this cape.

Depth

38m

Bottom

sand

Alarm Radius

80m

Crowds

Moderate

Protected: E NE N NWExposed: S SW WRestaurantFree anchoring

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Sancti Petri

(Caño de Sancti Petri)Excellent HoldingAtlantic Andalucía (S of Cádiz)

Sancti Petri is one of the hidden gems of the Gulf of Cádiz — a tidal estuary channel behind a sandbar giving near-perfect shelter in a wild, dramatic setting.

Depth

25m

Bottom

mud

Alarm Radius

70m

Crowds

Quiet

Protected: N NE NW E +Free anchoring

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Ensenada de Bolonia

(Bolonia Bay)Excellent HoldingStrait of Gibraltar (Atlantic side)

Ensenada de Bolonia is one of the most beautiful beach anchorages on the Atlantic coast of Spain — a wide, wild bay with a perfect white sand beach, dramatic dune system (the largest mobile dune in Europe, up to 30m high), and the remarkable ruins of Baelo Claudia, a complete Roman city on the beach that produced garum (fish sauce) for export to Rome.

Depth

38m

Bottom

sand

Alarm Radius

80m

Crowds

Moderate

Protected: E NE N NWExposed: W SW SRestaurantFree anchoring

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Rota Bay

(Ensenada de Rota)Good HoldingBay of Cádiz (N shore)

Rota anchorage sits in the N part of the famous Bay of Cádiz — a large sheltered bay that has been a strategic anchorage for centuries (the Spanish Armada assembled here in 1588).

Depth

49m

Bottom

sand

Alarm Radius

90m

Crowds

Quiet

Protected: W SW NW N +Exposed: E SE SRestaurantFree anchoring

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El Puerto de Santa María Approaches

(Puerto de Santa María)Good HoldingBay of Cádiz (Guadalete River mouth)

El Puerto de Santa María is famous for three things: sherry wine (it's one of the sherry triangle cities along with Jerez and Sanlúcar de Barrameda), fantastic seafood, and the Columbus connection — Columbus recruited crew here for his 1492 voyage.

Depth

38m

Bottom

sand

Alarm Radius

85m

Crowds

Moderate

Protected: W NW N SWExposed: E SE SRestaurantFree anchoring

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Mazagón

(Mazagon)Excellent HoldingHuelva Coast (Doñana approach)

Mazagón is the major staging anchorage for cruisers heading between the Gulf of Cádiz and Portugal — it sits midway between Cádiz and the Portuguese border, with the vast Doñana National Park immediately to the E.

Depth

410m

Bottom

sand

Alarm Radius

90m

Crowds

Quiet

Protected: N NE NW EExposed: S SW WRestaurantFree anchoring

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Isla Canela (Ayamonte)

(Ayamonte anchorage)Good HoldingHuelva Coast (Spanish-Portuguese border)

Isla Canela and the mouth of the Río Guadiana mark the border between Spain and Portugal — one of the most remarkable anchorages in the Gulf of Cádiz, with the unique distinction of straddling two countries.

Depth

38m

Bottom

sand

Alarm Radius

85m

Crowds

Quiet

Protected: N NE NW EExposed: S SW WRestaurantFree anchoring

Full anchoring guide →

Gulf of Cádiz Anchoring Rules — Summary

  • !Strait of Gibraltar TSS: Cross the Traffic Separation Scheme at exactly 90° to traffic flow. Ferries run constantly. Tidal current 3–4 kt — plan timing with Tarifa MRCC (VHF Ch 10). Levante + E-going current = dangerous short seas.
  • !Atlantic tidal range: 3–4m at springs. All depths given are above chart datum — apply tidal correction to every approach. Bars at Sancti Petri and the Guadiana river mouth: 2.5m at LW springs. Entry timing is critical.
  • !Doñana National Park: No anchoring, no landing, no motorised access. The park boundary extends offshore from Mazagón eastwards. Guardia Civil coastguard enforces strictly. Visit by authorised guided boat tour from Sanlúcar only.
  • !US Naval Base Rota: Restricted zone clearly marked with yellow buoys. Do NOT approach under any circumstances. US Navy patrol craft will intercept.
  • !COLREGS Rule 30: All-round white anchor light required at night. Set GPS anchor alarm — tidal current in the Gulf means boats swing significantly as current reverses direction.

Monitor Your Anchor in Atlantic Tidal Waters

Safety Anchor Alarm watches your GPS position continuously — essential in the Gulf of Cádiz where 3–4m Atlantic tides, strong tidal currents, and the risk of Levante squalls require a reliable anchor watch all night.

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