It i listed as a marine life conservation district, and is a popular destination for kayaking, scuba diving, and snorkeling.
There is no entrance fee.
Please respect all historical sites.
If you are like me you will want to go see the Captain James Cook Monument. The best way is to go by kayak. - Don't try to swim. Just trust me on that, OK? If you don't have a kayak there are place nearby to rent one.
There is a hike but I have heard it is only for folks that are in really good shape. If you want to try the trail starts on RT 160 (Napoopoo Rd.) It is best to go early in the morning and take plenty of water.
If you happen to be there on a Sunday check out the Pure Kona Green Market. It's a lot more than veggies!