Alsea Bay

Oregon, United States

Depth

15m

Visibility

5m - 14m

Entry

Boat

Experience Level

Beginner

Alsea Bay

Oregon, United States

Depth

15m

Visibility

5m - 14m

Entry

Boat

Experience Level

Beginner

About Alsea Bay

This bay is home to one of the most beautiful and pristine estuaries on the Oregon Coast. Here you can dive the bay as well as the Alsea River. Either way, you are guaranteed to have a beautiful relaxing dive with loads of marine life surrounding you. This site can be accessed by boat or from shore. Watch out for boat traffic.

Alsea Bay Dive Info

Terrain & Features

Other, Rock, Wall

Entry Type

Boat

Max Depth

15m

Visibility Range

5m – 14m

Experience Level

Beginner

Best Gas Mix

21%

O₂

CNS Load (45 min)

11% at 13m / 36%

O₂

Multi-Level Dive Planner

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Marine Life

Crabs
Various

Weather Conditions

Weather information for Alsea Bay coming soon.

Dive Operators near Alsea Bay

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Location

Location details missing.

Dive Site Hazards

Bubble Trapping Under Overhangs — Rock overhangs can trap exhaled bubbles, reducing visibility and causing disorientation.
Reflected Surge Patterns — Surge reflecting off rock faces can create irregular and unpredictable water movement.
Current Funnel Effect — Narrow gaps between rocks can accelerate water flow unexpectedly.

Unstable Visual Ascents — Relying on wall visuals can destabilise ascents.

Gradual Depth Creep — Lack of visual bottom reference can cause unnoticed descent.

Unsignalled Downcurrents — Downcurrents can form without visible indicators.

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