It is easy to get to/from Grenaa. The buss connections to/from Århus are good and it only takes app. 10 min.'s walk to Grenaa Gymnasium's Boarding School from the terminal. Many of the busses have stops right outside the main entrance of the boarding school. See routes and schedules below:
Bus
Train
Ferry Sjællands Odde - Ebeltoft
Ferry Anholt - Grenaa
Ferry Samsø - Hou