What is the maximum depth at Ruby E?

The maximum depth at Ruby E is 85 feet (26 meters), with an average depth of 65 feet.

What skill level is required to dive at Ruby E?

Ruby E is rated as intermediate difficulty. Some diving experience is recommended.

How do I access Ruby E?

Ruby E is a boat dive. Accessible only by boat, with numerous dive operators in San Diego offering trips to the site. Often combined with other Wreck Alley dives. The boat ride is typically 20-30 minutes from Mission Bay.

What marine life can I see at Ruby E?

The wreck is encrusted with invertebrates and hosts a variety of fish species. Common sightings include rockfish, lingcod, garibaldi, and schools of blacksmith. Nudibranchs, anemones, and sea stars cover much of the structure, and larger visitors like sea lions and harbor seals are often observed.

What is the typical visibility at Ruby E?

Visibility at Ruby E typically ranges from 25 to 45 feet, depending on conditions. Check our real-time conditions for the latest visibility forecast.

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Ruby E

POOR

San DiegoBoat

About This Site

The Ruby E is a 165-foot Coast Guard cutter sunk in 1989 as part of San Diego's artificial reef program. Located in Wreck Alley about 2 miles off Mission Beach, this wreck sits upright and is considered more accessible than the Yukon for intermediate divers, offering easier penetration opportunities and abundant marine life.

Difficulty

Intermediate

Max Depth

26m

Type

Boat

Typical Visibility

Conditions Summary

Best time today

6PM - 10PM

FAIR

Best day in forecast

Tomorrow

FAIR

2026-07-25

Community-reported visibility

n/a

Warnings for today

High waves expected

Conditions look wrong?

Help us improve our dive condition forecasts by sharing your local knowledge about how different swell directions affect this dive site.

Dive Conditions Forecast

6:00 am

Fair

(4/10 Points)

Entry & Exit

GREAT

Surge

FAIR

Impact on Viz

Impact on Visibility

POOR

Wave Data

Site

6:00 am

0.9

Rating:

POOR

Period:9s

Moderate

Direction:SSW (195°)

Wind Data

Local

6:00 am

km/h

Rating:

GOOD

Type:cross shore

Direction:S (172°)

Primary Swell Data

Offshore

6:00 am

0.8

Rating:

POOR

Period:9s

Direction:SSW (195°)

Secondary Swell Data

Offshore

6:00 am

0.6

Period:18s

Direction:SSW (211°)

Wind Waves

Offshore

6:00 am

Period:0s

Direction:S (178°)

Ocean Current

Offshore

6:00 am

km/h

Strength:Moderate

Flowing:NE (45°)

Tide Information

6:00 am

0.6

Rating:

POOR

Type:Rising

Low Tide

0.0 m

2:18 am

High Tide

1.0 m

8:57 am

Low Tide

0.8 m

1:02 pm

High Tide

1.6 m

7:21 pm