You can purchase some snares at my local bait shop here’s the location Fishery Supply
(408) 293-6593
https://goo.gl/maps/WEnM3uS6m8XUJyBp7
Here’s how you check the tide https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiUhajt-6X0AhVyHjQIHf0JCuwQFnoECAIQAQ&url=https%3A%2F%2Fwww.usharbors.com%2Fharbor%2Fcalifornia%2Focean-beach-outer-coast-ca%2Ftides%2F&usg=AOvVaw1Buq1bCD-ntDbYmvIjhENg