Yas Island in one day: visit the water park or SeaWorld first?

Tip: go to SeaWorld first, then the Yas Waterworld water park — combined it a similar way with another park, and after water slides you usually just want to head back to the hotel. In October there were almost no queues in Abu Dhabi parks, noticeably fewer tourists than in Dubai, especially off-season.

Recommendation: visit SeaWorld first, then head to the water park — after the water park you usually have no energy left for walking around, since sun, water, slides and constant movement are exhausting.

Question from a traveler with an 11-year-old: planning to visit both Yas Island parks in one day, asking for the best order and whether it's more comfortable to visit the water park before or after lunch to avoid crowds and heat.