Geese, you'd better be looking for snakes when your'e there!
Crow, regular digital camera, felt pretty safe.
When given the chance, the snakes have always gone for cover. What you really have to watch for is suprising a snake or having the snake suprise you! They can blend in pretty well. When looking, I try to glance close, then far. Most snakes are seen approx. 15ft away then "snuck" up to
I wouldn't want to stroll through that area at a good pace.