At Haunted Aquarium: Sea Monster Mash, enjoy close encounters with Scripps Institution of Oceanography scientists and search the galleries for unusual underwater creatures rarely seen at Birch Aquarium at Scripps. This October 20 & 21, discover a sea of glowing beasts (big and small), get sticky with slime, and enjoy spooky stories, all while boo-gieing down to live music and having a monstrously good time. Recommended for ages 2+. Pre-sale tickets are $13.50 for Birch Aquarium Members and $18.50 for the Public. Tickets at the door are $20. Free for children 2 and under. Please note that general admission tickets cannot be used for Haunted Aquarium. You will need to purchase a separate ticket for the special event. The aquarium closes between 5 and 6 p.m. For more information or to purchase tickets, visit aquarium.ucsd.edu or call 858-534-7336.