Beautiful dunes to hike across, or zoom down (don't forget a sled and wax).
Eat a La Posta, grab a drink at Double Eagle or El Patio, do some shopping around the Plaza. It is 16 de Septiembre (Mexican Independence Day) this weekend, so there will be a fiesta!
There are numerous hiking trails in the mountains, which are just a short distance from Las Cruces. Ask Erin for recommendations, or visit the Dripping Springs Visitor Center.
Great place to grab some coffee (Becks!) and food, as well as handmade gifts.