* Scurvy: Dias and his crew were not prepared for the long voyage and began to suffer from scurvy, which caused their gums to bleed and their teeth to fall out.
* Storms: Dias encountered several severe storms during his voyage, which damaged his ships and made navigation difficult.
* Mutinies: Dias' crew mutinied several times during the voyage, unhappy with the conditions and the risks they were taking.
* Loss of ships: Dias lost one of his ships in a storm, and another was forced to turn back due to damage.
* Loss of life: Several members of Dias' crew died during the voyage, from disease, accidents, and combat with hostile tribes.
Despite these hardships, Dias persevered and eventually succeeded in rounding the Cape of Good Hope and becoming the first European to do so. His voyage was a significant milestone in the history of exploration and paved the way for the establishment of European colonies in Africa and Asia.