If the channel to the Waimea Stream is open, don't even bother with the north side. Visibility will be terrible. When the channel is closed there is nice snorkeling on the north side with lots of fish and other critters to see. We try to arrive by 7:30 a.m. to get a parking space. Gives us time for 2 dives before lunch. The hardest thing about this dive is the long walk across the sinking sand with all your gear. You definitely work up a sweat before you hit the water. It's a long surface swim to go out to the south point before dropping down. There are some interesting rock formations, lots of eels, nudibranch, and an occasional honu.