My first concept is for Jellyfish Fields. I did some concept art but don't have a scanner, sorry :/ so the goal is to recreate this...
First the hills. They could be made using synthetic grass or the rubber you find at playgrounds. They can't be too steep to allow people you get over them. Scattered around the area will be different water play areas disguised as what you find in Jellyfish Fields. Try to picture a pink pole the has jellyfish branching off of it. These jellyfish spray water when their sensors detect people. Fibreglass coral sprays water in all directions. If you explore the area enough, you might be able to find all 3 character photo ops!
-Spongebob Catching a Jellyfish
-Patrick getting caught in his net
-Squidward getting zapped
But if water isn't your thing, that's alright! The water squirters are positioned so you can walk through the fields and stay dry! Then when you reach the other side, enjoy the Bikini Bottom Music Festival!
Find a spot on the grass and watch as every 30 minutes the fish of bikini bottom perform their favourite songs for you on a large outdoor stage, backed by a large screen! Enjoy songs like F.U.N, Ripped Pants and Goofy Goober Rock, Plus many more!
SO! That is my vision for Jellyfish fields.
Thoughts, Ideas, Criticism?