An awesome early-season visually-stunning two-segment 10-mile hike! We caught the 7 am ferry from Mukilteo and were the first car in the trailhead lot at 8 am. Note: Discover Pass required. We followed the loop trail north along the bluff, then down the switchbacks, back along the shore of the lagoon and back to the parking lot. Total loop about 4 miles. Fantastic views! The second half of the hike was south along the beach to Fort Casey. We walked around the point to the Keystone ferry landing, then checked out the gun emplacements. Total there-and-back, incuding exploring the fort, was about six miles. The hike along the beach gave us a surprisingly good workout! Marcia found her first agate ever, then found a second one. Mark found seven agates, and Phil found 13!