Here’s an answer to your question:
The general visit time for the park is about 2-3 hours. If you plan to go in the morning, there are a few dining options within walking distance from the main entrance of the park.
As for using one ticket to leave and re-enter on the same day, it depends on the specific attraction or theme park’s policies. Some parks may allow re-entry with your original ticket, while others may require you to purchase an additional ticket.
I hope this helps!