Equipped with top-of-the-line boats and a well-educated staff of naturalists, Dolphin Fleet Whale Watch is one of the most popular activities in Provincetown. Guests board a large vessel with two observation decks to get up close and personal with dolphins, humpback whales, mink whales and fin whales, who often like to interact with the boat by breaching around it. Reservations are strongly recommended, as these tours book up fast. Tickets are $47 for adults, $31 for children ages five to twelve and free for children age four and under. Special package rates can be arranged in advance.

whalewatch.com