Place water in the bottom of the slow cooker. Place ham in the slow cooker. Place lid on top and cook on high for 1 hour.
In a small pan, combine brown sugar, honey, cinnamon, orange juice and orange peel. Cook over medium heat until it reaches a boil.
Drizzle honey mixture over ham.
Lower the temperature on the slow cooker to low heat and cook for 3 hours.
Slice and serve.