Reef Explorers
Advanced≤30 m

Seian Maru

Dive site in Subic Bay, Philippines

Usual dive
27 m
Deepest point
32 m
Level
Advanced
Best months
Jan–Jun

The story

A Japanese auxiliary tanker, the Seian Maru was bombed and sunk by US Navy aircraft on the 19th December 1944, a few days after the Oryoku Maru, and lies on its port side at 27m.

Source: scubatechphilippines.com

The dive

A wreck dive.

Who it's for

Recommended minimum: Advanced (PADI Advanced Open Water, N2).

  • DepthThe usual dive goes deeper than lower certifications allow.
  • Low visibilityVisibility can be limited; good navigation helps.
  • The site goes deeper than 30 m: Advanced divers stay above 30 m.

Conditions

Dive type
Wreck
Environment
Open water
Water
Sea water

Season in Subic Bay

  • Best
  • Good
  • Possible
  • Closed
  • Not documented yet

Best months: Jan–Jun.

Source: underwaterasia.info

Where is Subic Bay?

View on OpenStreetMapLocation: Subic Bay (Wikipedia)Map: Natural Earth

The point shows the Subic Bay area, not the exact dive site.

About this page

Values marked “Estimated” come from our original catalogue and are being checked against published sources one by one. Sourced values link to where they come from. Conditions change with the season, the weather and the tide: confirm with a local dive centre before you dive.

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