Kīlauea Lighthouse & Hanalei Bay (North Shore)
On Kauaʻi's northernmost point, Kīlauea Lighthouse is an elevated cliff vantage with miles of ocean views for spotting whales and native seabirds — and the historic lighthouse makes it worth the stop regardless. Best in the morning. Nearby Hanalei Bay is a wide, quieter bay with expansive ocean views; pair the two for a North Shore whale-watching day.
Pōʻipu Beach & Spouting Horn (South Shore)
Pōʻipu Beach on the sunny South Shore has elevated sections of coastline with good ocean visibility, plus easy parking and amenities. Just nearby, Spouting Horn — a natural lava-tube blowhole and an attraction in its own right — has a flat rocky platform with wide ocean views. Combined, they make a fun morning of South Shore whale watching.
Kapaʻa Overlook (East Side)
Between Kapaʻa Town and Keālia Beach, this coastal overlook has good offshore views and is less crowded than the South Shore spots. Rent a bike and cruise the Kapaʻa bike path — there are vantage points all along the trail.
Nā Pali Coast (boat only)
These famous sea cliffs are only reachable by boat during whale season, and the combination of whales and Nā Pali scenery makes it the most visually spectacular whale-watching setting in Hawaiʻi.