Lying to the north of Huntington Beach is the Bolsa Chica Ecological Reserve, a salt marsh that harbors more than 300 types of birds, which you can see along a 11.2-mile (21.2-km) loop trail.
There are more than 300 types of birds at the salt marsh.
At the Aquarium of the Lakes, which is just beside the Lakeside Railway Station, you can familiarize yourself with the varieties of aquatic life that can be found around the National Park and beyond.