Mini-marine explorers can enjoy big fun at SEA LIFE Grapevine Aquarium with the return of Toddler Tuesdays featuring discounted admission every Tuesday starting September 5 through December 12. $15 admission includes one adult and up to two children ages 4 and under. Additional children ages 3-12 are $5. Additional adults are $15. Free for kids 2 and younger. Toddler Tuesday tickets available for purchase online and at the door.