ENVIRONMENTAL GROUPS

Amigos de Bolsa Chica offers free public tours from 9 to 10:30 a.m. the first Saturday of each month at the pedestrian bridge at the Bolsa Chica wetlands on Pacific Coast Highway across from Bolsa Chica State Beach. (714) 840-1575.

Bolsa Chica Conservancy Interpretive Center at Warner Avenue and Pacific Coast Highway features a marine aquarium and displays about wetland plants, invertebrates, fish, birds, reptiles, mammals, ecology and restoration. (714) 846-1114.

The Bolsa Chica Land Trust offers free public tours of the Bolsa Chica wetlands and mesas at 10 a.m. on the third Sunday of each month. (714) 846-1001.

The Bolsa Chica Stewards, the restoration team of the Bolsa Chica Land Trust, needs volunteers to help with its native planting project at the Bolsa Chica Ecological Reserve. (562) 920-4215.

The Friends of Shipley Nature Center invite you to visit the center in Huntington Central Park. It is open from 9 am to 1 p.m. Monday through Saturday. (714) 842-4772 or visit their website at www.fsnc.org.

The Huntington Beach Tree Society meets from 7 to 8:30 p.m. the third Wednesday of each month at the Huntington Beach Central Library, downstairs near the coffee shop, 7111 Talbert Ave. (714) 564-1396.