Las Vegas, NV (KTNV) -- The Las Vegas Wash celebrated World Wetlands Day on Thursday.
It's the fourth year Southern Nevada has taken part in the global event.
500 students from area schools spent the day at the wash, learning about the importance of wetlands.
Experts said anytime it rains in the valley, the runoff finds its way down the wash to the wetlands and eventually to Lake Mead.
"This area of the Las Vegas Wash and the wetlands that surround it are very important to improving our water in Southern Nevada."
Anyone can visit the wetlands.
The Las Vegas Wash has a nature center, hiking trails, bird watching and exhibits.