The Wetlands Park in Las Vegas has guided walks, talks, and programs every month. Some require advance registration.
April 28 from 9 a.m. to 1 p.m.: BioBlitz, a fun day of science in the park! Identify plants and animals with the help of expert scientists and naturalists. All observations are entered into a global database, iNaturalist.
April 29 from 9 to 11 a.m: the walk Nature is for Kids