Cruise ships visiting the Kona coast anchor in Kailua Bay and tender passengers to the Kailua Pier, at the north end of Kailua-Kona. You can easily explore downtown on foot. Tourist information, transportation and tours are available at the pier, which is great for sunset viewing.
An information booth for visitors is open on the pier 7:30 am-2 pm on days when cruise ships are in the harbor. http://www.destinationkonacoast.com.