This paper predicts the demand of the visitors in summer season in the East Coast of the Gangwon Province and suggests the vision of tourism policy. This study starts with the trend analysis, which is estimated by the cubic model by using time series data from 1982 to 2001. The increased rate of traffic inflow to the east coast area and the five-day working week are reflected in the trend analysis. The study forecasts that 15.9 million people may visit the east coast area in 2002. It is predicted that the percent of visitors to Kyongpo beach can reach to 36.4% of the total visitors to the east coast area. Kyongpo beach might be regarded as one of the most competitive tourism resources. Regarding the time series data, Kyongpo beach area has 12 sunny days out of 40 days in summer. So, it is suggested that new establishments such as ocean domes are needed in that area to overcome weather limitations through the year.