The location is every bit as magical as everyone says.
Here are my pro-tips:
+Stock up on food at Costco, it’s the cheapest on the island. Buy your snorkels there too and reef safe sunscreen
+Plan your days so you can have dinner/drinks from the patio/pool/hot tub during the magical sunsets - you won’t find a better place.
+snorkel at two-step
+kayak and snorkel at kaleakala. Big island kayaks will give you everything you need and they take walk ups
+bring a good book or ebook, you’ll want to spend more time here then you planned
+if you’re a light sleeper, bring earplugs and an eye mask, the sounds of nature are all around you and the front room especially gets bright early.