Saturdays, July 7 and 28. Join in the search for the world’s largest animal–the Blue Whale. Marine biologists lead the ocean safari about the Sea Explorer, which makes use of equipment such as an acoustic array, plankton nets, video microscopes and a sediment sampler. Continental breakfast included; bring a sack lunch. Ages 8 and older. 8 a.m. to 1 p.m. $55.
Ocean Institute, 24200 Dana Harbor Drive, Dana Point. 949-496-2274. www.Ocean-Institute.org