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Map of Ruby E Wreck (Wreck Alley)
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Ruby E Wreck (Wreck Alley)

California, United States
AOW suggested15–26 m (50–85 ft) depthBoat entry3mm wetsuit typical

Boat dive — see Entry & access.

Ruby E Wreck (Wreck Alley) at a glance

Ruby E Wreck (Wreck Alley) is an advanced boat dive site in California, United States with depths of 15.2–25.9 m (50–85 ft). Typically most favorable Jun–Jul · from 3 years of archive data. Divers commonly see Nudibranch, California sheephead, and Strawberry anemone (Corynactis californica). Recent reports put the water around 25°C (76°F). Check the latest conditions and entry details before you go.

Next window today· 8:00–19:00 · favorable · sunset 18:03

Forecast for this hour · 3:00 · run 16 h ago
0.8 m (2.8 ft)waves — under a meter expected (waves — about three feet expected)

Tap a factor for its source and model point · Forecast 25°C · seasonal avg 20°C ( · Forecast 76°F · seasonal avg 68°F)

Site hazards: Depth, currents, limited visibility some days, wreck penetration hazards (entanglement, silt, sharp metal) for those entering

Read the full hazards ↓

Dive windows this week

Mon8:00–19:00 favorable

0.9 m waves · 11 kn wind (2.8 ft waves · 11 kn wind)

Tue8:00–19:00 favorable

1.1 m waves · 5 kn wind (3.5 ft waves · 5 kn wind)

Wed8:00–19:00 favorable

1.1 m waves · 5 kn wind (3.4 ft waves · 5 kn wind)

Thu8:00–19:00 favorable

0.9 m waves · 5 kn wind (3.0 ft waves · 5 kn wind)

Fri8:00–18:00 favorable

0.9 m waves · 7 kn wind (3.0 ft waves · 7 kn wind)

Sat8:00–18:00 favorable

1.0 m waves · 4 kn wind (3.2 ft waves · 4 kn wind)

SunNot in the forecast yet

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wave and wind forecasts. Numbers under each bar are daylight averages.

First light 6:36 · Sunrise 7:02 · Sunset 18:03 · some windows run past sunset

Source: Open-Meteo marine · model point 3.0 km from site · updated 25 Oct, 10:20 GMT-7

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Ruby E Wreck (Wreck Alley)

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Nudibranch, California sheephead, Strawberry anemone (Corynactis californica)
Best time: Fall for best visibility; diveable year-round on calm days

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 70% of days have historically been favorable, water has typically been 15°C (59°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 13 knots
  2. February, 66% of days have historically been favorable, water has typically been 15°C (59°F), waves have typically been 1.4 m (4.5 ft), wind has typically been 14 knots
  3. March, 62% of days have historically been favorable, water has typically been 15°C (59°F), waves have typically been 1.4 m (4.6 ft), wind has typically been 14 knots
  4. April, 89% of days have historically been favorable, water has typically been 16°C (60°F), waves have typically been 1.2 m (3.9 ft), wind has typically been 12 knots
  5. May, 96% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 1.2 m (3.8 ft), wind has typically been 11 knots
  6. June, 100% of days have historically been favorable, water has typically been 20°C (67°F), waves have typically been 1.1 m (3.5 ft), wind has typically been 10 knots, historically most favorable
  7. July, 100% of days have historically been favorable, water has typically been 21°C (70°F), waves have typically been 1.0 m (3.3 ft), wind has typically been 10 knots, historically most favorable
  8. August, 98% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 1.1 m (3.4 ft), wind has typically been 10 knots
  9. September, 99% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 1.0 m (3.3 ft), wind has typically been 11 knots
  10. October, 92% of days have historically been favorable, water has typically been 20°C (68°F), waves have typically been 1.1 m (3.6 ft), wind has typically been 11 knots
  11. November, 91% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 1.1 m (3.5 ft), wind has typically been 11 knots
  12. December, 88% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 1.1 m (3.6 ft), wind has typically been 10 knots

June and July have typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated June 2026

Site details

A 165-ft former US Coast Guard cutter (originally the Cyane, built 1934) intentionally sunk in 1989 as part of San Diego's Wreck Alley artificial reef, about two miles off the Mission Beach jetty. She sits upright and largely intact on sand at about 85 ft, with the superstructure starting near 50 ft, and is carpeted in pink and purple strawberry (corynactis) anemones. Most areas of the wreck except the bilge are accessible to trained divers, and the site is usually marked with a buoy.

boatwreck

Depth, currents, limited visibility some days, wreck penetration hazards (entanglement, silt, sharp metal) for those entering

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