How busy is this park in late March 2021?

Shouldn't be to busy unless it's the weekend. Very windy. We should be there late March also. For a little RnR

There are lots of camping spots all the way around the rim and we've never seen them all full

I was there last week, Mar 14, 2021, and we got there at sunset and there were a couple spots left. I think there are 8 spots maybe more. Amazing camping spot!