A recent survey ranks dolphins' blowholes ahead of safety deposit boxes and mattresses as the preferred place to store valuables. Experience one of nature's most priceless resources with today's Groupon to Dolphin Watch Nature Tours, in Port Aransas. Choose between the following options:

• For $9, you get a 90-minute dolphin-watching cruise (a $20 value).
• For $17, you get a four-hour bay fishing trip (a $40 value).

Dolphin Watch Nature Tours bestows guests with opportunities to gaze at the aquatic splendor of the Gulf of Mexico or to catch the aquatic splendor of the Gulf of Mexico and give it a new home in your stomach. On the dolphin-watching cruise, observe the marine mammals in their natural environment as they feed, play, and plot to start a baseball team. Pelicans, cormorants, and whooping cranes are common sights on the tour, in addition to dolphins. Those who opt for the fishing trip may haul in such maritime delicacies as sand trout, drum, and sheephead, and won't have to worry about buying expensive fishing dynamite, as rod, reel, bait, and tackle are included.

Dolphin tours are carried out on either the Mustang (a 65 ft., two-story boat with 360-degree views from the top deck and a tank of small sea creatures on the lower level that children can touch), or the Duke —a 44 ft., single-story boat with a large shaded area and a private throne for people of high rank within their peerage. Fishing trips take place on the Island Queen II, a 64 ft. ferry boat with a wide bottom deck and an upper observation and sun deck.