The dome of the St. Louis Science Center's OMNIMAX theater is five stories high and 79 feet in diameter -- that's a great deal of space to fill with images. But a full-grown humpback whale is 50 feet long and weighs 48 tons, so they'll use all of it. Humpback Whales, the new IMAX film from MacGillivray Freeman Films, takes you undersea from Alaska to Hawaii to Tonga as you swim with these resilient and intelligent mammals. This is a rare opportunity to see life-size humpback whales without getting wet -- don't let it pass you by.
Noon daily. St. Louis Science Center-OMNIMAX Theater (5050 Oakland Avenue; 314-289-4424 or www.slsc.org). $8 to $9.