Kauaʻi

Kauai is for travelers who care more about green cliffs and trails than nightlife. Called the Garden Island and the oldest of the main islands, it feels softer and slower than Oahu or Maui, with small towns rather than resort strips. The north shore is the draw for hikers, and it rewards planning. Haena State Park, home to the trailhead of the Kalalau Trail, requires non-residents to buy park entry reservations, $5 per person, released 30 days in advance, so lock them in as soon as your dates are set. Rent a car, accept that weather on the north side can change plans, and keep a beach or lookout day in reserve. Kauai suits a trip of a week on one island better than a quick hop.