Sunday was an emotional day for David Williams. As a child he spent every summer on Lake Coeur d’Alene, and he always looked forward to the hydroplane races. When the last races were held in 1968, the 11-year-old Williams stood on the shore, dreaming of one day driving one of the roaring boats. On Sunday, Williams became the first hydroplane driver to take to the lake in 42 years, when he piloted a replica of the original 1957 Miss Wahoo out onto the choppy lake for a couple of rounds during the Diamond Cup Regatta.