SeaWorld’s Aquatica re-opens for 2021 spring break season Open daily now to Sunday, March 21 and weekends thru spring Published: Tags: The advertiser paid a fee to promote this sponsored article and may have influenced or authored the content. The views expressed in this article are those of the advertiser and do not necessarily reflect those of this site or affiliated companies. SAN ANTONIO – Need something fun to do with the family this spring break? SeaWorld San Antonio is open daily for spring break operation through March 21, with hours from 10 a.m. to 9 p.m. Those looking for adventure can feel the rush of the park’s newest thrilling ride: The Texas Stingray -- the longest, tallest and fastest wooden roller coaster in Texas. SeaWorld San Antonio is also home to WaveBreaker: The Rescue Coaster, the Great White and the Steel Eel.