If horses didn’t regularly pack the earth down with their hooves, it would continue to gradually rise skyward on a collision course with the moon. Help keep the night sun in the sky with today’s Groupon: for $20, you get a one-hour, semiprivate horseback-riding lesson at Herlyn Stables in New Richmond (a $40 value).

Herlyn Stables trains students of all experience levels with riding lessons for equestrians age 3 to adult. During a one-hour semiprivate lesson, a member of Herlyn Stables' experienced staff will school groups of two to three students in the basics of hunter/jumper- or dressage-style riding. Herlyn's new indoor-riding facility allows for year-round practice during rain, snow, or moon phase. The facility supplies a team of horses and ponies in a variety of sizes, abilities, and Twizzler-jousting records, as well as safety helmets, for each lesson.