I see there is an ongoing technical problem with the site, so I will recap what I commented on earlier to a post by jshults:
3 areas that I know would be a cinch to pick up 100+ caches in a single day are:
Redlands, Lancaster and Palm Springs
3 areas that I know would be a cinch to pick up 100+ caches in a single day are:
Redlands, Lancaster and Palm Springs