Ensenada de Bolonia Anchorage Guide

The Anchorage

Anchor in 3–7m on clean fine white sand in the wide open bay. Excellent holding in hard compacted Atlantic sand — one of the finest natural anchoring bottoms in southern Spain. The bay is sheltered from the Levante (E wind) that blows through the Strait — the surrounding hills give good protection from E through N. Completely exposed to the Atlantic from W through S — this is strictly a Levante/easterly shelter or a fair-weather anchorage in settled SW/W conditions. The ruins of the Roman city of Baelo Claudia are clearly visible from the anchorage — a remarkable landmark. The beach is a protected natural area; dinghy landing is straightforward on the sand.

Setting Your Anchor

The bottom at Ensenada de Bolonia is primarily sand with reliable holding when properly set. All depths are above chart datum — always calculate the current tidal height before approach using Cádiz, Huelva, or Tarifa tidal predictions (Spanish IHM tide tables available free at puertos.es). Allow for the full Atlantic tidal range of 3–4m at springs. Check the Posidonia DONIA app for the approach area to confirm no protected seagrass is present.

1. Approach in good visibility — confirm the tidal height gives adequate depth for your draft. If there is a bar or shoal on the approach, calculate precisely.
2. Calculate scope for maximum depth — at 3–8m plus up to 3m tidal rise, your maximum depth at HW may be 12m. Deploy minimum 7:1 scope accounting for the full tidal range.
3. Lie to the current, not the wind — in tidal waters the boat swings on the tidal stream. Drop the anchor into the current and pay out chain steadily. Allow for the swinging circle to change direction as the tide reverses.
4. Set firmly in reverse — 30–60 seconds moderate throttle astern to bury the anchor.
5. Take a GPS bearing — note the set position and verify your swinging circle is clear of other boats and the shore on both the flood and ebb tidal directions.

Recommended anchor types: SPADE, Delta, Rocna.

Overnight Anchoring & Anchor Alarm

Overnight stays at Ensenada de Bolonia are feasible but require careful monitoring — exposed to W and SW and S winds and swell.

Set your GPS anchor alarm to 80m radius before going below. 80m for 3–8m on outstanding clean sand. Excellent holding. W/SW completely exposed — leave immediately if Atlantic swell arrives from SW. Levante shelter is very effective — used by crews staging the Strait in E conditions.

Atlantic tidal note: In the Gulf of Cádiz with 3–4m tidal range, Atlantic swell, and the risk of the Levante developing overnight, your anchor watch must be reliable. The Levante (E wind) can strengthen to F7–8 within a few hours — if it is forecast, ensure you are in a W-facing anchorage (Bolonia, Bahía de Algeciras) rather than an E-facing position. Check the Tarifa MRCC forecast (VHF Ch 10) before settling for the night.

May–September in settled conditions. The Levante is actually your friend here — shelter increases when the E wind blows. Avoid in any W/SW conditions. This is strictly a fair-weather or Levante-shelter anchorage.

Navigation Hazards

• Atlantic swell from W/SW — anchorage untenable in Poniente conditions; leave before swell builds
• Tidal stream around Tarifa Point (3nm SE) reaches 3–4 kt — factor into departure timing
• Strong thermal wind in afternoon (Tarifa area) — can clock from E to W rapidly
• Rock patches at S end of bay near the point — anchor in central/N area of bay

Rules & Regulations

• Anchoring fee: Free
• Key restrictions: Beach is a protected natural area (Parque Natural del Estrecho). No quad bikes or vehicles on the beach. Baelo Claudia archaeological site charges €1.50 admission. No fires on the beach. The large dune is protected — no climbing on the active dune face.

This is Atlantic water — Posidonia seagrass (protected Mediterranean species) is not present in Gulf of Cádiz anchorages. Standard good anchoring practice applies: avoid anchoring over rocky ground, use appropriate chain length, and set firmly before considering the anchor secure.

Facilities

• Fresh water: Not available on site — nearest: Tarifa (9nm)
• Fuel: Not available — nearest: Tarifa (9nm)
• Restaurant: Two beach chiringuitos (beach bars) at the S end of the beach open June–September. Small car park café serves basic food year-round.
• Provisions: None on site — Tarifa (9nm)

Skipper's Tips

1. Bolonia is the perfect waiting anchorage for a westbound Strait passage in Levante conditions — shelter from E wind while waiting for the right current.
2. The Baelo Claudia Roman ruins (walk up from beach, 5 minutes) are extraordinary — a complete Roman city with theatre, forum, and fish-salting pools, all freely accessible from the beach.
3. The giant dune (Duna de Bolonia) is stunning — 200m wide, 30m high, moving 1m/year. Walk along the beach to the N end.
4. Leave at first light when making a westbound Strait passage — the E-going surface current typically runs strongest in the morning.