At night, the Purple Martins take flight! Each summer the skies over Lunch Island on Lake Murray come to life as the Purple Martins arrive for their summer vacation. It is estimated that more than one million birds venture north for the summer and roost on the island, giving spectators a rare look at one of nature’s true phenomenons. It is best to see this attraction in late June through August. You also must go by boat to Lunch Island located in the middle of gorgeous Lake Murray. Boats are available to rent around Lake Murray or personal tours are offered.