The horse farm, horse stabling facility and/or horseback riding facility may be used for the following purposes: shelter and care of privately owned horses, the letting of horses for hire to individuals or groups, whether supervised or unsupervised, and/or horseback riding instruction/training, provided that these activities are located sufficiently away from neighboring residences so as not to impinge on the use and enjoyment thereof and appropriate off-street parking and access is made available and there are no signs, other than a farm identification sign, on the premises. The Planning Board may further condition or limit the scope of these activities or uses depending on the amount of property available and the potential impact upon neighboring residences.