I-90 Issaquah Highlands Days Saturday, August 26, 2017 12:00pm 4:00pm 12:00 16:00 2550 Northeast Park Drive Issaquah, WA, 98029 United States Join other I-90 Families at the annual Issaquah Highland Days Festival. Enjoy live entertainment, hearty fare, and medieval fun. Learn more HERE.Want to help out at the I-90 booth that day? Fill out the form below! Name * Name First Name Last Name Email Address * I'd love to help at the Highlands Days Event * Message * Thank you!