I have been fortunate to travel to the big island a handful of times throughout the past 10 years, and the Grotto has been my favorite place to land so far.
It is perfectly located- just a short walk to Kehena Beach and a short drive to Uncle Robert's Marketplace. Do ask the hosts for recommendations for day trips and adventures- they have tons of knowledge and ideas!
The Grotto is a gem, as well! It's artfully and beautifully built into its surrounding monkey pod trees. It has all the amenities you should want/need, including an outdoor shower and soaking tub!
Also, one of our favorite parts of the Grotto.. you will be handsomely welcomed by the sweet Meow-Meow at your doorstep. Meow- Meow loved to walk us around the grounds and show us all the best sun-bathing spots!