This rattle snake is a meter long. The ice plant planted to secure the mud from tidal forces, also provides caves and protection for her and her children. It is always a good thing to be careful walking in the iceplant (a non-native Californian plant). This snake was in the shade and looked like the wrack thrown up on the sand. The sun was setting and she was resting near her hiding place.
This snake has a lovely set of rattles. Not all adult snakes keep all of their rattles as they grow and so counting the 'buttons' is not a good way of aging the reptile.
There are rats and voles and mice for snakes to eat. Rats, voles, mice eat beetles! I like snakes.