Fun things a 6th grade girl can do over the summer?

i'm going to 6th grade and it's summer time. i have nothing 2 do i called all of my friends asked if they would meet up @ the park but they couldn't :( we can't ride our bikes 2 the mall because it 90 degrees outside. i could always play outside but i hav no one 2 do anything with me. so any ideas of what 2 do