Seacrest Park is a small West Seattle waterfront park best known for Cove 2, an easy shore-diving site used by local scuba classes and technical divers. The underwater slope drops quickly, with old pilings, submerged logs, and wreckage that draw marine life.
Even if you are not diving, it is a useful Alki-side stop for views back across Elliott Bay to the downtown skyline. The water-taxi dock and pier facilities make it one of the easier Seattle shoreline parks to work into a half-day on the west side.