Can an entity add a clause that protects it from any legal action if it causes damage due to negligence

I am going on an educational overseas tour conducted by the school. In the waiver of liability release it states "fully and irrevocably release ABC University and its officers, trustees, agents, employees and assigns ("Releasees") from any and all liability for loss, harm damage, injury, claims, demands actions, costs and expenses of any nature whatsoever, whether in law or equity ("Claims") which the Participant may have or which may hereafter accrue arising out of or related to Participant's enrollment in the Education Abroad Program, including but not limited to, claims of personal injury, death, damage to property or other, whether caused by the negligence, omission or carelessness of ABC University or its agents. Is this legally allowed?