Hold Fast

Hold Fast. Explore our local kelp forests and climate change by weaving through a labyrinth of cyanotype-printed giant kelp, witness up-to-the-minute kelp forest mapping and more. Daily through Sept. $19.95–$24.95. Birch Aquarium at Scripps, 2300 Expedition Way, La Jolla. Advance reservations required: www.aquarium.ucsd.edu