Kids and families can visit the Fort Gratiot Light Station this Friday to learn about how waves work.  “Wacky Waves” will be presented from 1 p.m. to 2:30 p.m. Friday, December 28 at the Fort Gratiot Light Station Duplex Building on Omar St.   This program will be a hand-on learning activity that will show the science behind waves and water.  Tours of the station and the tower will be part of the program for families and kids.  Cost is $6 each.