On a lovely and cleverly landscaped hillside site with great views over Playa Mermejita, Italian-owned Oceanomar has a gorgeous pool and five spacious, well-built cabañas with nice craft details, hammock-slung terraces and good bathrooms. There's a great little on-site restaurant also called Oceanomar, serving meals for guests all day and open to nonguests in the evening.
There are also two smaller, more affordable rooms here.