After Tara and I visited the beach we took a walk down the main street of Kona. This part of the port reminded me of some of the Caribbean islands I've been to like St. Maarten. Lots of touristy shops and places to eat. While that doesn't seem riveting it does have a nice feel, especially when there is nothing near you at other ports. Tara and I did have an afternoon glass bottom boat excursion. While it wasn't a highlight like Hana was, it was nice and relaxing and since it was the last boat of the day it wasn't crowded.
The other thing worth mentioning about Kona is that it is the "nicer" side of the Big Island. The weather is better, the port area is much nicer and this is the stop where you get to do several different types of water activities - snorkeling, Atlantis Submarine, Snuba, Catamaran sailing, para sailing, and more.