SUPERIOR, Wis. (AP) -- A near-record low water level on Lake Superior is causing the National Park Service in the Apostle Islands to make some adjustments this summer.

The lake is a foot and a-half below its long-term average. The last time the lake was this low was 1926.

Apostle Islands National Lakeshore Superintendent Bob Krumanaker says they're installing some vertical rails on a number of docks, so people in small boats can climb up.

Shallow water spots are highlighted on the Apostle Islands' Web site. The lake bottom is generally sandy and no places have been closed to boaters.