This was a good time for my 3 and 5 year old. The lines were not long, my son could ride all of the rides and my daughter could most of the rides. There are lots of thing that we would do different but overall it was a good experience for the whole family. I would not recommend bringing grandparents as pretty much the entire park is on a hill. We packed our own lunch of PB&J and ate it, but we noticed a lot of the eatery places were either not open or had very limited hours. Also, if you get the bottomless fountain soda cup, you cannot pick it up or use it until 1100 (an hour after the park opens). One last thing, as of right now, the central hub is under construction, so you so there are no shortcuts through the park (like going straight to the legoland castle is not possible without going through other sections of the park). Bring a hat, sunscreen, and a backpack for snacks and supplies.