Unsure if my message comes too late, & I may be wrong but I think there's a day deal for $10 - still not ideal, but I don't know re belt bags.
We did the Penguins Encounter a few years ago which we thought was worth the money. Had a few drinks in sharks, which was pricey. Not sure if the vibes matched the price.
I've never been hugely impressed with the food at Seaworld, despite my love for the park,
Head to back of park early, and you'll walk on Mako several times. Everyone seems to go straight to Manta, but visit that later.
Plan to see a few shows. If Electric Ocean is on, it's a good way to chill out and enjoy a show at the end of the evening. Not sure if we got lucky, but it poured out before rides shut and we got on ice-breaker a few times in the dark, which was a nice end to the evening.