If forests are the earth's lungs, then swamps must be the earth's birthmarks. Explore earthy points of interest with today's Groupon: for $20, you get two adult tickets for a swamp-exploration expedition from Cajun Country Swamp Tours, based in Breaux Bridge (a $40 value). Please note that though tickets for adults are $20 each, children 13 and under can enjoy the excursion anytime, with or without a Groupon, for $10 each.

Cajun Country Swamp Tours whisks swamp tourists on two-hour treks through Cajun swamp country, with appointments available from dawn to two hours before sunset. Customers hop aboard a crawfish skiff, where tour guide Walter "Butch" Guchereau stands proud and loud, escorting groups up to 12 through the backwaters of the Lake Martin swamp. The skiff skids across the greenery-riddled waterways in search of roseate spoonbills, white ibis, egretable egrets, herons, and alligators coexisting under the jurisprudence of Mother Nature. Throughout the excursion, Butch will reveal how the waterways came to be, why many backwater legends are more than just myths, and why flossing a gator's teeth is thoughtful, but inadvisable for hand models.