Sources: Chosun and South Korea public holidays. There are reports that many large corporations in South Korea have either given May 2nd, 2008, as a day off, or encouraged their workers to take a day of leave on that day, with the result that one can expect most banks, government services and large corporations to be hard to reach from May 1st to May 5th, 2008, inclusively. However, most department and discount stores are expected to remain open on May 2nd.
Note that the May 1st holiday is generally only observed by the civil service, banks and large corporations, while small and medium-sized businesses usually work normally on that day. Therefore the May 2nd bridge holiday does not apply to these small and medium-sized businesses.