Newcastle Beach Park is the place to be! Walk or bike from the Lake Washington Trail, exiting near GZ, and continue down the hill to find a tucked-away gem of a park. Build castles in the sand, walk around the loop, watch kite-surfers in the summer, picnic, throw the frisbee around...you can do it all at this park!
Stealth is a must on nice days...muggles galore when the sun comes out. Be aware that there are speedy two-wheeled muggles as well. The cache is placed with you in mind --no need to play chicken with any bicyclists during your hunt!
FTF- Congrats to Tobias & Petronella!
Updated Coordinates: N 47° 33.837 W 122° 11.237