Dolphins are one of the world's smartest animals; unfortunately, many of their squeaky literary insights are only intelligible to other dolphins and people fluent in dog whistle. Attempt to understand a water mammal with today's Groupon to The Tropics Boat Tours in Clearwater Beach. Choose from the following options:

• For $16, you get one adult ticket to a dolphin exploration tour (up to a $32 value).
• For $9, you get one child's ticket to a dolphin exploration tour (up to an $18 value).
• For $19, you get one adult (21+) ticket to the Saturday night party cruise (a $39 value).

In its blue and white, tropical-flavored, double-decker catamaran, The Tropics Boat Tours takes travelers on big blue adventures in the great Gulf of Mexico. The vivacious vessel holds up to 125 passengers on its double decks, so voyagers choose whether they prefer to sail in the shade or al fresco, no matter the excursion. Departing from Clearwater Bay and traversing Clearwater Pass, the two-hour dolphin exploration tour follows the trail of the gulf's most knowledgeable native, the bottlenose dolphin, as it smiles for the cameras and makes kissy faces. Adult adventurers can listen as intrepid tour guides share firm facts about the dolphins and their Gulf Coast abode, and fidgety cherubs can savor Tommy the Turtle story time. The water coach's complimentary wine, beer, and soft drinks, as well as an ear-enveloping sound system, keep tours scooting along in style. Tours leave daily at 2:30 p.m. and 5 p.m.

Also offering complimentary beer, wine, and soft-drink draws, the two-hour Saturday night party cruise shows off views of a beautiful Gulf of Mexico sunset set to the beat of party-ready tunes. Those looking for specific sips can order from the full-service cocktail bar, and eagle-eyed excursionists might witness the legendary green flash, which some say is a result of bent sun rays and others claim is actually the sun's natural eye color. Cruises leave every Saturday at 7:15 p.m.