Site Resources & Tools
Dive planning for Mukilteo T Dock
Site Briefing
This site is a favorite dive site for open water dive certification classes and makes for a great night dive or deep dive. With easy access, plenty of life and enough structure to be interesting, it also serves as a regular dive site for veteran divers too.
Divers have built several destinations in the site. The geodome is a primary attraction. There are also various concrete blocks that invite wolfeels and other creatures. There's a 'deco station' you can hold on to in the shallows.
The bottom begins with large rocks and cobble stones until the 15-20' depth where it begins to drop off steeply. Straight out from the entry point there is a large road sign
A little deeper at 50' there is a large geodome structure made of large PVC pipe. The pipes are covered with small invertebrates and provides home to many copper rockfish.
Just below the geodome there are some concrete block sturcutres that are often home to wolf-eels.
The bottom continues from there to beyond recreational diving limits. There's a deep destination known as the Mukilteo Man. We don't recommend it. The depth can get you into a lot of trouble and there are way better sites to explore! Check out our list of top puget sound dive sites for inspiration!
There is a pier to the right of the entry point where large schools of shiner and pile perch hang out, especially in summer months, and dungeness crab scurry along the bottom. The pilings are covered with mussels and barnacles and provide homes for many small sculpin and other creatures.
There is a fishing pier to the left of the entry point, best to steer clear of that one.
Conditions: There can be currents in the area, especially after the ferry dock relocation to the east some years back. Be sure to dive at slack or mild ebb. Check for north winds before you go.
Marine life: Commonly seen: wolf eel. Regularly reported: rockfish, nudibranch, ratfish, giant pacific octopus, sea stars, painted and plumose anemones. Occasional decorated warbonnets on the geodome.
⚠️ Before diving at Mukilteo T Dock, always check the site-specific wind/wave forecast, tide/currents, and recent reports (latest: Jul 4, 2026) !
Nearby Stations
Click a pin to see current, tide, camera, or buoy data near the dive site (you may need to zoom in or out)
Nearby Sites
- Mukilteo Clay Wall (<1 mile)
- Mukilteo Edgewater Beach Park (~1 miles)
- Hat Island Fish Haven (~3 miles)
- MV Alindeska Sea (~4 miles)
- Mukilteo Wreck (~4 miles)














