Mukilteo T-Dock

Washington, USA West
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Difficulty
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Viz (last reported 35740h ago)
Max Depth
40ft (unconfirmed)

Snorkeling and Scuba Diving at Mukilteo T-Dock

The T-dock is a great place for a leisurely dive, bottle hunting or grabbing a few crabs. The pilings on the old dock are always interesting to explore. Take exit 189 off I-5 in Everett, and head West on 526. Then head North on 525. Follow signs to the Mukilteo Ferry. Take a right at the intersection just after you pass of over the railroad tracks (See the aerial photo). Just past the hotel on your left, turn left into the parking area.
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Mukilteo T-Dock Tide Chart and Surf Report (Beta)

Monday
12:19 AM / 11.579ft
Monday
7:29 AM / -3.839ft
Monday
3:05 PM / 12.553ft
Monday
8:22 PM / 7.711ft
Tuesday
1:07 AM / 11.061ft
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(27)
Zentacle
Zentacle
Sep 21, 2021, 1:05 AM
scuba
Stay on this side of the dock. Don't venture too far to the South-- that's the ferry terminal in the background! Watch the current, and be sure to stay in the immediate area.
Max From Everett
Max From Everett
Nov 8, 2017, 12:00 AM
scuba
This is very nice dive site with easy shore entry. Moderate sensitivity to current (sometimes one can experience a bit of down falling current). Pilings and hose can be used for navigational purpose. Geodome structure made of PVC pipes at around 70 feet is always full of life. Sometimes one can spot an octopus. Ratfish is common. Lots of gunnels, sandfish, various sculpins and crabs.
Originally posted on shorediving.com
Peter50
Peter50
Apr 26, 2016, 12:00 AM
scuba
23 Apr. 16 We dove down to the Geodome. It's straight out from the beach. There's a rope around 20fsw (I'm sure it was installed for students on check dives) and then the dome sit's around 50-60fsw. If you can't find it, turn north until you come to the pipe from NOAA. Drop down until you see the toilet and head south. You'll run right into it. Largest sea cucumbers I've ever seen. Some were over 1' long and there were lots of them. Big yellow rock fish and a few small ones hanging upside down on the corners of the geodome. Water was 48 degrees and vis was about 25'. The T dock itself is now gone. It was removed a few months ago. So, along with it are all the big crabs, rat fish, and a host of other species of marine life. Pay parking was also added. There are still a few free spots if you get lucky. According to a local resident who was visiting with us, it's to make room for the new ferry terminal. I googled it. Below is a link to a story in the Everett WA Herald dated 6 June 2013 and a few links from WA State Ferry's web site itself. I just hope we can still dive this spot once the new terminal is built. Every time we dive here, we eat at Ivar's, Arnie's, Diamond Knot Brewery or Brooklyn Bros Pizzeria. Diving burns the calories and it's nice to grab something to eat before we head home. We come down from Ferndale, Blaine and Lynden. Http://www.heraldnet.com/article/20130606/NEWS01/706069892 a second link http://www.wsdot.wa.gov/NR/rdonlyres/5B6748B1-B215-4CF8-A41F-38C2C07D4877/110782/Presentation_022316.pdf and a third http://www.wsdot.wa.gov/projects/ferries/mukilteoterminal/multimodal/
Originally posted on shorediving.com
LeAnne
LeAnne
Sep 28, 2014, 12:00 AM
scuba
9/28/2014 Entered the water prior to ebb. Compass set for 310 degrees and headed down to the PVC geodome @ 55fsw. Water temperature ~51F and vis' was 15-20' (great for the Puget Sound this time of year). Hundreds of perch schooled around the geodome. Lots of rock fish and sculpins. At the banded PVC pipes, ~30' north of the geodome, there were 2 young wolf eels. Both were willing to poke their heads out a bit, without coming fully out to socialize. We continued north to the dock and were happily surprised to see at least a dozen spotted ratfish and more than a couple dozen red rock and dungeness crab. Even with a full class of OW students at the site, because of our route and depth(max 78fsw) my buddies and I were able to be completely by ourselves for the entire dive.
Originally posted on shorediving.com
Peter
Peter
May 22, 2013, 12:00 AM
scuba
Dove here on 20 May. Vis was great, over 30'. Got down to 118' and 114' on the two dives. Only the top 15' was turned up. H2O temp was 51 degrees. Lots of small crabs, sculpins, a huge school of shiner pearch (20' long, 3' high and 2' deep). Saw a pin fish that was floating along with the seaweed. It almost looked like seaweed until I saw its eyes. Lots of flat fish of all sorts. Some were as big as 1 1/2'. Lots of sea cucumbers. A few less now that I ate some. Things were quiet, I was the only diver there. As always, another two dives logged.
Originally posted on shorediving.com
Peter
Peter
Aug 2, 2011, 12:00 AM
scuba
I agree with Marty about watching your stuff. I made a trip to the ferry docks to use the restroom for the obvious reason. I hit the road a little bit later. When I made my turn at the stop sign my tailgate fell open. Yep...BC, dive computer and numerous items were gone. $2300.00 in total. F*$#%&s. I had my gun with me. Good thing I didn't see them. If they're reading this...I'm going to get you sooner or later. I did get two nice dives in though. Busy place this weekend. Vis got better below 30FSW. Lots of crabs and people gathering them. Usually a nice place to dive except this time. Oh yeah...if anyone saw anything let me know.
Originally posted on shorediving.com
Marty Smith
Marty Smith
Jun 6, 2011, 12:00 AM
scuba
We used this site to earn our Scuba Merit Badge. If you start the dive at 7am, you can find parking right away. There are some family sized handy cans in the Ferry parking area for emergency bathroom use. A concrete patio area along the waters edge which is elevated about 5 feet above the beach level. I found this nice to set up all the gear in our class for instruction. Just a few steps and over a small log to the beach. High tide and you are right there at waters edge. Low tide and there's a good 80 foot walk to the waters edge. As noted on other remarks, it's clear, can get deep fast and lots to see. I enjoyed it. Make sure to have someone on the shoreline to watch your stuff. Lots of mugglers walking around. The hotel next door is really nice. It would be fun to stay here and dive at this site.
Originally posted on shorediving.com
Peter
Peter
Mar 29, 2011, 12:00 AM
scuba
Dove here on 26 March. First dive since returning from the Arabian Sea for a six month deployment. Did my refresher dive down to 30fsw for almost an hour. Very easy entry and it's only a few feet from the water at high tide which it was. Lots of crab and baby flat fish. The second dive was down to 60fsw. Found the Geo-Dome at 60 ft. There were lots of starfish and grunt sculpins hanging around it. I still haven't seen a GPO there but the divers before me did. The water was 41 degrees, 15 to 20 feet vis and little or no current. Lot's of silt was kicked up at the shallower depth's because of the class going on. Below 30 feet every thing was clear. Even with the ten person class and the other divers there was plenty of parking. I've been here several times and it's always fun.
Originally posted on shorediving.com
Ryan Phillips
Ryan Phillips
Mar 16, 2011, 12:00 AM
scuba
Closest dive spot for me. The dive shop I frequent is 10 minutes away and has scheduled dives at T-Dock every evening at 6:00. Very easy entry, not a long surface swim. Great for beginners with a line at 25 ft for classes. Cool Geo-Dome at 60 ft. As wells as a small boat, satellite dish and jungle gym at 110 ft. Lots of fun stuff to see between 40 and 60 ft as well as lots of starfish & crabs.
Originally posted on shorediving.com
Stephen from Mukilteo
Stephen from Mukilteo
Jan 26, 2009, 12:00 AM
scuba
Great dive for beginners all the way up to master and tech. It gets deep with a boat to about 130'. Gpo still might be guarding eggs underneath. Grunt sculpins and red octos north of the t dock in about 40'-50' during the day. Night dives are my favorite with bioluminescence and octos everywhere. You'll find a baby wolf eel in the geodome middle left pipe. It can get boring if you don't look or is your first dive here.
Originally posted on shorediving.com
Peter
Peter
Jun 17, 2008, 12:00 AM
scuba
Did two dives on Sunday June 15th. The first to 117' and the second to 106'. Vis was about 10', H2O temp was 37 and 41 degrees, at the surface it was 50. Easy slope all the way down, so a deep dive was easily accomplished and the shore can't be missed. I saw lots of smaller crabs (only a few legal size), stars, rock sole and a plethora of other small guys. If you wander north you'll come across a pipe. Use this to mark the farthest point north. At that point go inshore and you'll arrive at the piling, almost where you started. There's some manmade reef structures, such as an old porcelain throne and sink, tires, huge springs, metal basket, a 10' satellite dish, and a street sign standing straight up. There were three open parking spaces when I arrived and the same when I left, and a few restaurants within throwing distance. The beach got crowded during low tide because everyone was sitting there eating lunch. I went by myself and I buddied up with a couple who were going in as I was. There were about ten divers there total. Nice dive and friendly people, but aren't all divers.
Originally posted on shorediving.com
EnjoysWater
EnjoysWater
Jan 4, 2007, 12:00 AM
scuba
For my open water certification last spring I dove Mukilteo T-dock. In late September 2006 I got my advanced and did all 5 dives here as well. The easy entry and lack of crazy currents make this site ideal for classes (but beware of diving here on Saturday mornings). It has a nice slope downward, so our deep dive was easily accomplished, and shore is not hard to find. I've seen a couple of smaller octos here, crabs, stars, and a plethora of other small guys. If you go at night, you'll be sure to see those funky looking fish that will drift into you. The pilings are interesting, and there are some random pieces of "junk" or manmade reef structures, such as an old porcelain throne that my dive buddy and I swear we saw a wolf eel in. I have yet to dive the oil dock but would say this is a low key dive, and good for beginners.
Originally posted on shorediving.com
Todd Westby
Todd Westby
Oct 7, 2006, 12:00 AM
scuba
Did this site for my open water cert. It was great and saw a lot of life. Vis was good when we got away from other people. I plan on returning for the oil dock.
Originally posted on shorediving.com
Meredith
Meredith
Aug 1, 2006, 12:00 AM
scuba
We dove the T-Dock on July 30th and had a very relaxing dive. The current was almost non-existent and the water was very calm. The starfish population was amazing to observe. Visibility at shallow depths was quite limited, but improved once we broke the 25-30 foot depth.
Originally posted on shorediving.com
Ray of Bellingham
Ray of Bellingham
Mar 29, 2006, 12:00 AM
scuba
Did my first two certification dives here, and it was a lot of fun, mostly because it was my first two open water dives. The vis was absolutely horrible due to the number of people that were there. It was very crowded. I hear it's much better during the week instead of the weekend. But when we did finally get away from the other classes, the vis cleared up some, and there was a lot of stuff to see.
Originally posted on shorediving.com
Nolan
Nolan
Aug 9, 2005, 12:00 AM
scuba
Sorry guys, the T-Dock has been forever altered. The state is building a new pier and, in the construction process, they pulled up the old pilings that were lying on the bottom. The site is also currently closed to diving except for weekends. Deeper (120 fsw), the site has not been affected so there is still a dive site for advanced cert. and experienced divers.
Originally posted on shorediving.com
Stan Groomer
Stan Groomer
Jul 7, 2005, 12:00 AM
scuba
I have dove this site hundreds of times both as an instructor and a diver. There is always something new to see. Good site for all levels...gets deep fast. Looking forward to hundreds of more dives here in the future.
Originally posted on shorediving.com
Anonymous
Anonymous
Nov 10, 2004, 12:00 AM
scuba
Did my 4 open water certification dives here. Very nice. So much to see. Easy in and out.
Originally posted on shorediving.com
Diver Mike
Diver Mike
Oct 27, 2004, 12:00 AM
scuba
As a night dive this is an excellent area to dive. You can go deep (over 120') and shallow to see the T-dock and marine life. Ease of shore entry is outstanding. Steps to the sand and smooth bottom.
Originally posted on shorediving.com
Mark on AOL
Mark on AOL
Sep 8, 2004, 12:00 AM
scuba
Used to be a great crab dive. The whole sea bed seemed to move with thousands of them, but alas, it's been pretty wiped out, except for the first few days of the season.
Originally posted on shorediving.com
Gerry Hall
Gerry Hall
Jun 2, 2004, 12:00 AM
scuba
It was a great first deep dive at night. Our vis was 20+ feet once you got below 15 feet.
Originally posted on shorediving.com
Brian Wiederspan
Brian Wiederspan
Dec 2, 2003, 12:00 AM
scuba
This is a good site for all skill levels. Many Open Water classes are done here due to the lack of current and shallower depths just off shore, but it also drops off fast. You can easily hit 140'+ in no time. Lot's of tech training is done here as well due to the depths you can reach rather quickly and easily. The Geodome and troll are fun to see and there is usually a good amount of life here.
Originally posted on shorediving.com
Steve Simms
Steve Simms
Nov 17, 2003, 12:00 AM
scuba
This was a fun place to explore. I'm a pack rat by nature, so I'm always looking for stuff to pick up from the bottom to take home. Looked like the place was picked over, though. The piling are great. I need to come back here for a night dive. It's easy to do a couple of dives in this area, so bring enough tanks to make a day of it.
Originally posted on shorediving.com
Jim S
Jim S
Jul 19, 2003, 12:00 AM
scuba
Nice dive. Very little Parking. Bottom drops fast past 100'. Lots of small fish and crab. Load of shrimp. Vis typical of Puget Sound with 10' in the shallows above 30' and 15 to 20' at depth. Watch out for the ferry as it's really close. Neat underwater Geo Structure in about 40' of water straight out from the entry. Even has a Buddha inside.
Originally posted on shorediving.com
Robert E. Helton
Robert E. Helton
Jan 28, 2003, 12:00 AM
scuba
This is a fun dive for everyone. Even on the North side of the T-dock. I have seen the Vis here from 2 inches up to 50 feet, and this is a place you can go deep or stay shallow. There's lots of life in the area. I help out a lot with Classes here. I recommend this site; it's not the hardest you'll dive.
Originally posted on shorediving.com
Anonymous
Anonymous
Sep 12, 2002, 12:00 AM
scuba
Dove this site on two consecutive days. The second day we dove at 0645 at a slack tide. Vis was excellent. The cabezons and lings on the north wall of the dry dock were huge. Over the years I've heard lots of great stuff about this site. It definitely lives up to its billing. Easy entry, current not a problem, easy to navigate.
Originally posted on shorediving.com
Curt Johnson
Curt Johnson
Nov 17, 2001, 12:00 AM
scuba
This site has changed since the picture was taken. A hotel stands next to the dive beach and the beach itself has concrete stairs down from the parking lot next to a sign with a SCUBA diver logo. This spot is used by local dive shops for certification dives, consequently, some artificial reef junk has been placed there. Lots of small fish: greenling, rockfish, gunnels, bay pipefish, tubesnouts... Invertebrates on the pilings. Harbor seals are common as are sea lions in the winter.
Originally posted on shorediving.com