Mellis Road Access is a walk-in water access point on the I-82 Ponds Unit of the Sunnyside-Snake River Wildlife Area, located along Interstate 82 east of Yakima.

Access requires driving through a culvert under the freeway to reach Ponds 1 & 2 on the north side of I-82, with parking available at the trailhead on Mellis Road. A Discover Pass is required, and the area is open during daylight hours only.