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PC 815 Subchaser

PC 815 Subchaser

California, United States

Depth
Depth Icon

27m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced

PC 815 Subchaser

California, United States

PC 815 Subchaser
Depth
Depth Icon

27m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced

About PC 815 Subchaser
This Subchaser collided with the USS Laffey Submarine while operating in dense fog. She sank in September 1945. Today she rests on her port side and is believed that she has been demolished to eliminate any unexploded ordnance. This is a beautiful wreck dive with abundance in marine life and coral growth.

PC 815 Subchaser Dive Info

Terrain & Features

Drift, Reef, Wreck

Entry Type

Boat

Max Depth

27m

Visibility Range

6m – 18m

Experience Level

Advanced

Best Gas Mix

21% – 38%

O2
CNS Load (25 min)

13% at 25m / 36%

O2
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Marine Life
  • Blacksmiths
  • Cabezons
  • Garibaldi
  • Gobies
  • Groupers
  • Lingcods
  • Sheepheads
  • Various
Weather Conditions
Water temperature (℃)
Air temperature range (℃)
Average air temperature (℃)
Wind speed (km/h)
Precipitation (mm)
Dive Operators near PC 815 Subchaser
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Location
Dive Site Hazards

  • Eddy Pull-Off Zones — Eddies behind structures can pull divers away from the main drift line.

  • Delayed Surface Pickup — Strong current can exceed surface tracking assumptions, delaying boat pickup.

  • Vertical Current Shear — Currents may vary by depth, causing vertical separation even when divers stay together.

  • Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

  • Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

  • Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

  • Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.

  • Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.

  • Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

  • Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

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