Everglades Eco-Tours. For over 30 years, Captain Sterling has operated Everglades and Florida Bay ecology tours and more expensive sunset cruises. With his expert guidance, you can see dolphins, manatees, and birds from the casual comfort of his pontoon boat, equipped with PVC chairs. Bring your own food and drinks; each tour has a maximum of six people. Sundowners Restaurant, MM 104 BS , 103900 Overseas Hwy., Key Largo, Florida, 33037. 305/853–5161; 888/224–6044; www.captainsterling.com. From $59.
M.V. Key Largo Princess. Two-hour glass-bottom-boat trips and more expensive sunset cruises on a luxury 70-foot motor yacht with a 280-square-foot glass viewing area depart from the Holiday Inn docks three times a day. Purchase tickets online to save big. Holiday Inn, MM 100 OS, 99701 Overseas Hwy., Key Largo, Florida, 33037. 305/451–4655; 877/648–8129; www.keylargoprincess.com. $35.