Dive-site story
Situated along the Siuslaw River entrance near Florence, Oregon, this jetty dive features large granite riprap boulders that provide attachment surfaces and crevices for cold-water Pacific invertebrates and bottom-dwelling fish. The underwater terrain transitions from rubble and boulder slopes into sandy river channel substrate. Timing dives precisely around high slack tide is critical to navigate the intense tidal currents that sweep through the channel.
Rugged riprap jetty boulders offering habitat for cryptic coastal marine species
Frequent encounters with giant Pacific octopuses tucked into rocky crevices
Abundant macro subjects including varied nudibranchs and sea anemones
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Late summer and early autumn bring calmer Pacific ocean swells and lower river runoff, yielding the best visibility.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Giant Pacific OctopusEnteroctopus dofleini | Common | ||||||||||||
| LingcodOphiodon elongatus | Common | ||||||||||||
| CabezonScorpaenichthys marmoratus | Common | ||||||||||||
| Black RockfishSebastes melanops | Common | ||||||||||||
| Dungeness CrabMetacarcinus magister | Common | ||||||||||||
| Kelp GreenlingHexagrammos decagrammus | Common |
Marine forecast
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