All winter sports activities (i.e. ice skating, cross-country skiing, ice boating) are unsupervised and the Lot Owner who engages in such winter activities, or who permits others to engage in on their Trust property, do so at their own risk. No ice fishing is permitted. No snowmobiles or other motorized vehicles of any type are permitted on the ice, the Park or other Trust property. Persons who are not Estate property owners or do not have permission of Estate property owners, will be considered trespassers.