Janice Applegate was an honorable seafaring adventurer (other's say she was quite the skullywag pirate). Some people say she even left caches of treasure to be found. The legend has it that the coordinates of her treasure were at N25 57.687, W-81 44.816. But as every good pirate knows, one does not simply tell others where one hides their treasure caches.
To find Janice's treasure go to the posted coordinates and find her plaque. Start with the legendary Northerly coordinates and subtract the date she landed. Next, take the legendary Westerly coordinates and subtract the date Janice set sail. If you do the math right, you may just be the next lucky pirate to uncover Janice's treasure cache.
You can check your answers for this puzzle on GeoChecker.com.