The City and County of Honolulu wants visitors to make a pledge to "Keep Hawaii -- Hawaii."

To help get that done, the city council is considering a bill establishing an awareness program educating tourists on how to be environmentally and culturally sensitive.

It's similar to a program considered successful on Kaua'i.

"When people are pulling off and parking, not realizing they're blocking somebody's driveway," said Sue Kanoho, of the Kaua'i Visitors Bureau. "You know things like that that they need to be probably more aware of, and I just think that sometimes if you're not in that mindset you're unconsciously doing things that you weren't aware of."

There are also plans in place to air videos on flights, cruise ships and other venues in the visitor industry.