Tony, top spot this time of year would be Koloa landing on the south shore. I did 2 shore dives there and saw 6 dragon morays, golden dwarf moray, and a zebra moray on the one dive. The other one a seal came in and caught and ate a scorpionfish right in front of us. There's a bright purple leaf fish there that's super cool to watch too. He's always in the same spot, so ask if you do a dive. I think he's too deep to see snorkelling though. It's a small site with tonnes of critters there. Should be able to see some cool things snorkelling. LOTS of different morays there, some fairly shallow. There are also banded angels there too. The dolfins come in close to shore there as well as the odd seal so keep an eye out for them. Also, keep an eye out for my camera that I let go on a different dive on the south end!
It's a black nikon. That was back in Nov but you never know. lol I have about 400 pics of 9 dives on it....