At one time the state had a problem with illegal t-shirt venders operating in the crater. Some were even scamming visitors.  A crackdown has mostly done away with the problem.

Now the focus is on cashing in on the natural resource while helping to better manage it.

"We are looking at a small and discreet gift shop within our interpretation center where visitors can get information but buy t- shirts, and water bottles,” said Cottrell.

"I think the idea is a good one if marketed well. My idea is, you buy a t- shirt and you get into the park for free, so it’s a win, win for everyone." said Cole Jones.

Other park goers say they just don't want to be gauged.

The state isn't ready to roll out anything official just yet.

But already on the internet there are visitors wanting to buy t-shirts that say " I hiked Diamond Head," And there are people already selling them.