something that‘s fun for kids=something fun for kids

never heard about it...can be some fun for kids...or you may pronuce it differentlly but not write it.
well...somewhere and something seems like two different meanin..so..if it like what you put up with...then..somewhere..not something,which is a place for kids,right?

简单从意义上看是可以这样说的，但是如果something前有成分，而that's 为定语，或补语， 则不可以这样替换。