Red sky at night is a sailor’s delight, but red sky at morning means the ship's been steered into a volcano. Discover further aquaformation with today’s Groupon: for $149, you get a four-hour boat rental at Carefree Boat Club (a $375 value), with locations at Clear Lake and Lake Conroe.

Thanks to the knowledgeable team and impressive sea stock at Carefree Boat Club, aquanauts can confidently cruise the welcoming waters of Clear Lake or Lake Conroe in a ski boat, pontoon boat, or runabout of their choice. Either on your own or with friends, select an aqueous steed from the club's fleet; most boats seat 5–8 people. Then after a brief orientation (should take no longer than 20 minutes), saunter out onto the open waters, calling up the adventurous maritime spirits of Christopher Columbus and Ferdinand Magellan, who each desperately competed to score the first ocean-based reality-TV-show contract. Half-day rentals are available from 8 a.m. to noon or from 2 p.m. to 6 p.m. and afterward, patrons can celebrate nabbing a trophy fish by visiting various nearby local attractions, such as the Kemah Lighthouse District and the Johnson Space Center.