A tour boat motors toward the island of Molokini on Wednesday morning. Bills in the Legislature would limit the number of commercial boats moored at any one time in the crater to 20. But the state ...

A research team last week began studying the ecosystem around Molokini — without the usual tour boats and crowds of snorkelers — to observe any changes. They already have noticed a few.

U.S. News Insider Tip: The boat ride back from Molokini tends to get very windy and bumpy, which might not be suitable for those prone to seasickness. If you can't handle the boat trip ...