The water park is at the back of the regular park so you have to walk through the whole thing to get to the water park. There do seem to be deals through the
Lego magazine, certain small packs of Legos, sometimes McDonalds and even sites like Living Social or Groupon. Just keep your eyes out and you'll find something.
We went the last week of August last year, and yes, it was very, very, very hot. But the park was absolutely empty!! I mean my husband and I were looking at one another as we walked from the shuttle to the gate, wondering if there was something wrong! My kids literally walked onto every single ride in the park! I think the longest they waited for anything was 5 minutes. They had the run of the place!
The water park was definitely a nice break in the heat, though.