Redmond is famous for being home to Microsoft Corporation. Microsoft has a large presence over the area. It is also home to Nintendo of America along with numerous other companies. Redmond is the self-proclaimed biking capital of the country.
Pick up a bike. The city has numerous trails. Just be careful as some end on extremely busy roads.
Spend a day a Marymoor Park. There are a number of things to do in it's vast 640 acres. It lies along Lake Sammamish and the Sammamish River. There are sports fields, tennis courts, a climbing wall, a radio-controlled airplane field, a dog park, and the Velodrome, which is a bicycle racing track that connects with the Sammamish River Trail. There is a small parking fee for automoblies.