Bodies of water are frequent metaphors in poetry because of their unfathomable depths, unknowable sprawl, and unattainable porpoises. Watch crafts set sail into the enigma with today's Groupon: for $10, you get two admissions to Bandera RiverFest on Saturday, June 25 from 10 a.m. to 6 p.m. (a $20 value). Children 12 and younger are admitted free.

Bandera RiverFest’s schedule enlivens the banks of the Medina River with a host of games, music, festival fare, and events. Witness the festival's capstone, the Anything That Floats Regatta, where decorated vessels crafted from a variety of floating materials, including foamboard and living otters, parade down the river. The dulcet tones of bands such as Fifty Dollar Dynasty and The Perfect Parrothead Party enchant eardrums, and watermelon and Big Lou’s hot-dog-eating contest and a Central Texas Barbecue Association–sanctioned barbecue cook-off challenge bellies to expand themselves. Additional events include a car show, an arts-and-crafts show, and a swap meet, where you can trade Social Security numbers.

The sandy Bandera coastline, adjacent to the grassy banks of the Medina River, shares its yellowish-brown kernels with festival attendees, allowing them to build sandcastles and bury old magazines.