Join Marin County Parks to help observe the flowing creek, salaman-ders, and early blooming flowers. Meet at the gate at the end of Cascade Drive, paying attention to street signs when parking. This walk is for 18-year-olds and up. If the creek is full, the walk will be along the narrow, slippery High Water Trail. Ques-tions: Contact Shannon Burke at (415) 893-9520.