So I've discovered this summer that google sketch up, available for download at http://sketchup.google.com/products.html is possibly the best way to design parks and park features. download sketch up(pro you have to pay for but you could prob find it free somewhere. I have the $50 1 year student trial). Download my sketchup file and open it with sketch up. http://www.mediafire.com/?6fgx0cm0ltb
Someone needs to figure out how to make jibberish levels from sketch up files.
here are some pics from my sketch up park.
my park includes about 150 rails and boxes, a ferrari rail, horse jib, airplane jib, trailer jib, 18 wheeler jib, tank rail, quarterpipe rails and boxes, swirly rail, tons of huge jumps, a mid mountain lodge, and a huge hotel and lodge at the bottom like the cliff lodge.