The state park covers 545 acres (221 ha) that are bordered by the north and south channels of the Boise River.

The park's recreational facilities include swimming beach, picnic area, and equestrian and hiking trails.

[3] In response to a poll concerning disposition of the land in the local newspaper, the Land Board voted to set aside the property to be managed as Eagle Island State Park.

[5] The park offers a snow tubing hill that run typically from Thanksgiving to April 1 with skiing and snowboarding as well.

The park in the summer has more than 5 miles (8.0 km) of equestrian trails, non-motorized boating, horseshoes, picnicking, swimming, volleyball, fishing, and disc golf course.