We very much enjoyed our stay at Steve and Teresa's guest houses. It's off the beaten tourist path, has plenty of local flavor and is very quiet. It has an uninterrupted view of the ocean from the covered patio, a small pool and lava flowes down to the ocean to explore. I could just to sit and watch the ocean crash against the lava all day. There is one small black sand beach near by (a short drive through the local village and walk through the jungle) for snorkeling and a full compliment of snorkel gear at the house. I heard that the Spinner dolphins often play at this beach but they weren't there the day we went.
If you like to cook, the kitchen has more than ample space. It has coolers and other amenities for taking lunch on your beach excursions. Do your shopping before you get there, you won't want to run out for milk!