Kealakekua Bay State Historical Park on the Kona side of the Big Island is a protected marine conservation area and one of the most historically significant places in Hawaii. It is the bay where Captain James Cook died in 1779 after a conflict with Hawaiians, and a white monument on the far shore marks the spot. The bay is well known for its clear water and abundant marine life, making it one of the best places on the island for snorkeling. Spinner dolphins, colorful fish and coral gardens are common sights, and the bay's history and scenery add depth to any visit. Entry is free. The Kaawaloa trail is steep, so bring water and good shoes, and check current rules on boat and kayak access before planning your trip.