Santa Ana NWR, 2,088 acre National Wildlife Refuge with more than 400 species of bird; nearly half of all butterfly species found in North America. It is a rare subtropical area with unique wildlife. Established in 1943, the refuge serves as protection for migratory birds and offers a glimpse into a world that has vanished from 95 percent of the Lower Rio Grande Valley. Santa Ana NWR is open 7 days a week from sunrise to sunset for wildlife observation, hiking, nature photography, and year-round interpretive and educational programs. The visitor center is open daily from 8:00-4:00 p.m. except for Thanksgiving, Christmas, and New Years. Call for more information.