Siku Lagoon   Be the first to submit input for Siku Lagoon. If you have info on Siku Lagoon, North Slope Borough, Alaska please submit it here to improve this web site.          These outdoors activities are available near Siku Lagoon.   Whitewater Near Siku Lagoon: Kongakut River, North SlopeBorough, 19 miles away       Class II-III - 60 miles long (Mountains to Arctic Ocean)