 During a busy summer season, up to 100,000 tourists visit the island, arriving by one of the catamaran ferries operated by the Trident Charter Company.Cars are banned from the island, as are bicycles; quad bikes and tractors used for staff and luggage transport respectively are allowed.Herm was first found in the Mesolithic period (between 10,000 and 8,000 B.C), when hunters were in search of food.