Marymoor Park

Marymoor Park, located on the north end of Lake Sammamish in Redmond, Washington, is King County's largest, oldest, and most popular park, with more than 3 million annual visitors coming to roam its 640 acres. Among recreational activities available are various sports facilities, rock climbing, a 40-acre off-leash dog park and a velodrome. It is also one end of the Sammamish River Trail, a biking and walking trail. In addition, a radio control aircraft flying field and a pet memorial garden are within the park's boundaries.

The historic Willowmoor farm and Clise Mansion lie at the western edge of the park, along the Sammamish River. The farm and mansion were created in the early 1900s by James Clise, a banker. The landscaping was designed by the Olmsted Brothers.

Source: Wikipedia