If you are traveling with someone else, split up your clothing and shoes so each person’s suitcase contains some of the other traveler’s items.

Solo travelers may wish to investigate shipping some items ahead by EMS, FedEx or another freight company to their cruise ships or destinations, depending on the cost of this service, in case their luggage gets lost.

我特别不能理解to their cruise ships or destinations这个想表达的什么意思，通过EMS, FedEx or another freight company调查一些运输条款，为什么这里还要加一句to their cruise ships or destinations请老师解惑？