The Friends of Thunder Bay National Marine Sanctuary would like to welcome you to participate in our summer programs! Take a bite out of summer break and join our Shark Days program! The days will be filled with shark-themes activities and crafts. Ever wonder who is tougher: Great White Sharks or Killer Whales? Find out in this program! For ages 7-9. Cost is $25. Call 989-884-6200 to register or if you have questions.