Kauai, known as the Garden Isle, is famous for its lush valleys, dramatic cliffs, and pristine beaches. In 2024, over 1 million visitors explored the island, supporting local economies but also placing pressure on fragile habitats, freshwater systems, and native forests. Many Kauai hotels have embraced sustainable practices, from renewable energy and water conservation to reef-safe initiatives allowing travelers to minimize their footprint while supporting local communities. Read more about Kauai’s top eco-friendly hotels below.
1 Hotel Hanalei Bay
Located on Kauai’s scenic North Shore, 1 Hotel Hanalei Bay blends luxury with a deep commitment to sustainability. The property has transformed into a model for eco-conscious hospitality in Hawaii.
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What makes it sustainable:
• LEED certification: The resort is LEED BD+C: Hospitality (v4) certified, optimizing energy efficiency through green systems including LED lighting, increased insulation, HVAC systems with energy recovery, and advanced monitoring.
• Zero-waste program: Committed to achieving an industry-leading zero-waste footprint by using compostable materials, actively diverting waste streams from landfills, and eliminating single-use plastics.
• Rainwater harvesting: A 7,400-gallon system captures rainfall, saving 3.5 million gallons of water annually.
• Ocean-friendly practices: Recognized by the Surfrider Foundation as Hawaii’s first Ocean Friendly Hotel for banning plastic bottles and bags, offering refill stations, and providing reef-safe sunscreen.
• Repurposed materials: Utilizes 144.6 tons of salvaged materials turned into furniture and sustainable art pieces that pay homage to their surroundings.
Grand Hyatt Kaua‘i Resort & Spa
Located on the sunny South Shore in Po‘ipū, Grand Hyatt Kaua‘i Resort & Spa is a luxury beachfront oasis that offers a blend of Hawaiian elegance and environmental stewardship.
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What makes it sustainable:
• Solar energy: The resort has installed photovoltaic panels, generating 445 megawatt-hours of renewable energy annually, reducing reliance on fossil fuels.
• Water conservation: Employs water-saving technologies and practices to reduce water consumption across the property.
• Waste diversion: Implements waste diversion strategies to minimize landfill contributions and promote recycling.
• Cultural preservation: Offers Hawaiian cultural programs and activities, fostering a deeper connection with the island's heritage.
• Sustainable dining: Restaurants feature locally sourced and sustainably harvested ingredients, reducing the carbon footprint.
Read more about eco-friendly hotels across all Hawaiian islands in our Complete Hawaii Eco-Friendly Hotels Guide (2025).