I love the Aquarium of the Pacific...as you can see my son loves it too!
Some advise - if going on a weekday do not go before noon - school field trips are usually there and your kids will have to push their way through an exhibit to see - not fun. After noon you have the place to yourself.
Now ways to save:
1 - On most Friday nights they have Shark Lagoon Nights from 6pm - 9pm = FREE
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2 - In the Summer they have Discounted Late Nights from 5pm - 9pm = $12.95 each
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3 - GOLDSTAR has tickets for $15.50 for Adult, $9 per child to visit from 3pm - 6pm
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4 - On September 8th it is Seniors Day and anyone over the age of 50 get in FREE
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5 - READY SET GROW LA has coupons you can print out....save $6 Adult $2 Child
Click here for coupon
For more on the Aquarium of the Pacific click here