The rise of COVID-19 has brought many changes in various fields, especially the tourism field. During the pandemic, Jeju Island has become more popular than ever since it is considered as one of the relatively safe regions where people can travel away from the virus, which is a major factor to attract people of all ages, leading to increase visitors. In this paper, whether Jeju has proper infrastructures and services necessary for tourists was focused on with a survey of those who travel to Jeju. The goals of the study are (a) to provide those who are in the tourism field with useful information based on the research design, hypotheses, tests, and findings and (b) to promote Jeju Island. For the analysis, SPSS Statistics 24.0 was used to approach three hypotheses: (1) the factors in the preparations for tourists visiting Jeju affect their satisfaction with visiting Jeju, (2) their satisfaction is related to their behavioral intention, and (3) the factors in the preparations for tourists visiting Jeju influence their behavioral intention. The results showed that (1) accommodation, tourist guides, restaurants, and transportation are highly likely to affect visitor satisfaction, (2) their satisfaction has a positive relationship with behavioral intention, and (3) accommodation, tourist guides, and tourist attractions show a correlation with the intention to visit again.