Briefing provided by Jeff Vance on Aug 10 2009
Click a marker for info
Site Briefing
Approximate location
45° 58.96' N 122° 25.14' W
Speelyai Bay Recreation Area
$3 park fee
Dive flag suggested as many boats use the lake in the summer. Also be aware of shore fisherman.
Sunken logs - Freshwater sculpins - Trout
According to others -- A diver has laid some lines just outside the bay into Lake Merwin. These lines may go deep into the lake.

The shallow part of Speelyia Bay may be a good skills training site or quick freshwater dive close to Portland/Vancouver.

Local rescue diver certification class dive here.
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Recent Discussionsnew discussion
Started by
Jeff Vance
Sep 4 2012
12:27 AM
Posts: 1, Last post by Jeff Vance at September 4 2012 12:27 AM
The line is still there and actually looked in better shape since last time I was there.
It has been repaired in many places where it was broken last time.

Seemed to be a lot more fresh water clams and sculpins out and about.
Started by
Jeff Vance
Jul 24 2011
2:32 PM
Posts: 1, Last post by Jeff Vance at July 24 2011 2:32 PM
The line has been broken in a few spots.

From the entry to the right of the boat dock -- Way at the end of the parking lot.
Head straight out - in about 25 feet you will find a large mound
Turn straight to your right and stay at 20-25
You should come across the line at some point.

Future plans are to run a new line starting from this mound.
Started by
Jeff Vance
Aug 31 2009
1:47 AM
Posts: 1, Last post by Jeff Vance at August 31 2009 1:47 AM
Enter the water past the boat ramp.

Get down about 15-20 feet and head parallel to the shore.

You will come to a huge old stump -- 6 to 8 feet diameter.

Continue past it and you "should" run into the line.
People say the line is attached to the stump but we couldn't find it.

Be aware of your gas supply -- This line is rumored to be very long.

Somewhat interesting structures and stumps/trees.
Fresh water sculpins, trout, Crawdads.
Closest Shops
Thunder Reef Divers
12104 NE Highway 99
Vancouver, Washington 98686
(360) 573-8507
Mon-Fri: 11:00am - 7:00pm
Sat: 10:00am - 4:00pm
Sun: Closed
Rentals and air
Seven Seas Scuba
3200 SE 164th Ave., Suite 216
Vancouver, Washington 98683
(360) 260-9969
Mon-Fri: 11:00am - 7:00pm
Sat: 11:00am - 5:00pm
Sun: Unknown
Rentals, air and nitrox
Pacific Water Sports
17128 SW Shaw
Aloha, Oregon 97007
(503) 642-3483
Mon-Fri: 10:00am - 7:00pm
Sat: 10:00am - 5:00pm
Rentals and air
Closest Dive Sites
Yale Lake
Lots of boats
Tolmie State Park
State park with remains of a couple of barges
Steilacoom Marina
Lots of wrecks close to each other