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Alki Pipeline is a southwest-facing shore dive in Central Puget Sound.

Recent Visibility Reports

Dive report for 5/25/26

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Visibility
A hazy 15 feet, <5 feet in the shallows (incoming tide)

So many orange sea cucumbers feeding, a field of sea fans in the sandy stretch between pipeline sections, many jellies and comb jellies, blood stars, various nudi species, pregnant rockfish, lingcod, kelp greenlings, and painted greenlings on the rocks and the pipeline's terminus in around 30' at low tide. Prostrate kelp species completely covering most of the rock pipeline armoring
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Dive report for 3/16/26

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By zarrin
Visibility
10 feet

First time here and wow, I'm really glad to have done this one! The pipe runs along a heading of 200 deg (originating from the intersection of 63rd and Spokane). You can't see the pipe, it's just a bunch of rock cropping that are in a line that give you the impression there's a pipe there somewhere. Then it'll branch off into a sandy area - about 5 mins of casual swimming and you'll get to the end of the pipe, which is truly impressive with a diameter of about 6'. Critters did not disappoint: red Irish lord. Sturgeon poacher. At least 9 sea lemons. 3-4 ring spotted Dorids. Freckled Dorids. One brown rockfish. Two kelp greenlings, one lingcod (plenty of eggs). Sea pens. Lots of sea lemon egg nests and lingcod eggs. Vermillion sea star. Two lewis' moon snails. Really lovely dive - glad the winds / current / weekend finally aligned!
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