San Dieguito High School Academy drama students perform Disney's "The Little Mermaid" April 17-19 and 24-26 at 7 p.m., April 19 at 2 p.m. and April 23 at 4 p.m. in Encinitas. A sneak peek dinner-and-show fundraiser is also set for April 16 at 5:30 p.m.