Traveling is a recreational activity that brings satisfaction to everyone. The development of information technology presents a new way to provide guidance in dealing with various situations that may occur during travel. One of the products of these developments is the implementation of expert systems. Expert systems provide accurate information based on the knowledge possessed by an expert. For example, in an off island travel scenario, a traveler needs information about the condition of the destination. In this case, the expert system combines all available information to provide guidance to the traveler. This not only increases the convenience of travel, but also provides a higher assurance of safety for travelers. The design of the expert system includes understanding the environment and scope of knowledge, knowledge acquisition, designing causal models, and designing ontologies on Protege.