On the Big Island, where people use dogs for hunting wild pigs, many residents have at least five and some as many 30 dogs, says Debbie Crazatta, founder of the Kohala Animal Relocation and Education Service, which helps find homes for stray dogs.

WSJ: Hawaii Turns to Dog Shrink as 'Incessant Barkers' Cut Plea Deals

All of the ground floor rooms and villas feature an outdoor lava rock shower located just around the corner from the indoor bathroom. (Second-floor rooms have bigger lanais and better views of the secluded Kona-Kohala coast, since they are higher up.) Move from the bathroom to the slate stepping-stones on your private lanai for a blissful outdoor rain shower.

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