Planet Fitness, an international fitness chain based in New Hampshire, is expanding to Hawaii with its first location opening at the Target-anchored Puunene Shopping Center on Maui, the brokerage firm that did the deal confirmed to Pacific Business News Friday. The Puunene Shopping Center in the Maui Business Park in Kahului, the most densely populated area on Maui, includes a mix of local and national retailers, restaurants and service providers. Planet Fitness Inc.