where could i go?

Retired seniors, new to prospecting. Based in Massachusetts. We did Herkimer last fall for the first time out. Fun, but really a yawn. What you get is not worth the time and effort, and money. We are looking at sites in South and North Carolina for spring, found an interesting place in NH...

I have been searching with my bounty hunter for old coins, mostly between the 20's, 30's and 40's) but just keep on finding other random stuff.. Anyone have some advice for a good place to metal detect here in Houston? Thanks!