The underwater park at Keystone Jetty is found just South of the Keystone Ferry terminal in the Fort Casey State Park.  A small parking area with picnic tables and facilities makes for a nice two-tank location.

About 30 miles North of Seattle on Whidbey Island.  The location makes for a great loop drive for a leisurely day.  The North access to the island is via Anacortes, and the South access is via the Mukilteo Ferry, just West of Everett.  About in the middle of the Island, just South of Coupeville, head West on Wanamaker road (highway 20) to the Keystone Ferry landing.

Keystone Jetty (Fort Casey)

This was the third and fourth dives I've done here and it was great.  There were quite a few fish, lingcod and greenlings mostly, but there was also a school of Tube Snout hanging around during our drift dive.

Ryan from Oak Harbor's Dive Log

@ryan_from_oak_harbor

1 dives